WikiCardsWikiCards · Card list · Nature
Nature cards in WikiCards
WikiCards has 599 Nature cards in its base set: 11 Legendary, 62 Epic, 134 Rare, 265 Uncommon and 127 Common. The strongest are Marine life, Mount Everest, Colorado River. Each card is a real Wikipedia article, with its photo credit and licence below it.
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Marine life
UncommonAttack 100Marine life, which is also known as sea life or ocean life, refers to all the marine organisms that live in salt water…
Mount Everest
LegendaryAttack 97Mount Everest (known in Nepali as Sagarmāthā, in Sherpa as Chamolangma, and in Tibetan as Jomolangma/Čhomolangma is the…
Photo Rdevany, CC BY-SA 3.0
Colorado River
RareAttack 97The Colorado River is one of the principal rivers in the Southwestern United States and in northern Mexico.
Photo Charles Wang, CC BY-SA 4.0
Tyrannosaurus
LegendaryAttack 97Tyrannosaurus is a genus of large theropod dinosaur.
Photo ScottRobertAnselmo, CC BY-SA 3.0
Soil
UncommonAttack 96Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, water, and organisms that…
Cretaceous–Paleogene extinction event
EpicAttack 95The Cretaceous–Paleogene extinction event, formerly known as the Cretaceous–Tertiary extinction event, was a major mass…
Tropical cyclone
RareAttack 95A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation…
Wildfire
RareAttack 95A wildfire, forest fire, brushfire or a bushfire is an unplanned and uncontrolled fire in an area of combustible vegetation.
Photo Mike McMillan/USFS, Public domain
Cyanobacteria
RareAttack 94Cyanobacteria are a group of autotrophic gram-negative bacteria of the phylum Cyanobacteriota that can obtain biological…
Photo Willem van Aken, CSIRO, CC BY 3.0
Nile
EpicAttack 93The Nile is a major north-flowing river in northeast Africa which empties into the Mediterranean Sea.
Photo Fiktube, CC BY-SA 4.0
Hummingbird
RareAttack 93Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae.
Photo Charles J. Sharp, CC BY-SA 4.0
Adriatic Sea
RareAttack 93The Adriatic Sea is a body of water separating the Italian Peninsula from the Balkan Peninsula.
Air pollution
RareAttack 93Air pollution is the presence of substances in the air that are harmful to humans, other living beings or the environment.
Photo Janak Bhatta, CC BY-SA 4.0
Mediterranean Sea
EpicAttack 93The Mediterranean Sea is an intercontinental sea situated between Europe, Asia, and Africa.
Cat
LegendaryAttack 92The cat, also called domestic cat and house cat, is a small domesticated carnivorous mammal.
Ant
RareAttack 92Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order…
Mississippi River
EpicAttack 92The Mississippi River is the primary river of the largest drainage basin in the United States.
Photo NPS photo, Public domain
Dingo
EpicAttack 92The dingo is a lineage of dog found in Australia.
Photo Charles J. Sharp, CC BY-SA 4.0
Human overpopulation
UncommonAttack 91Human overpopulation or human population overshoot is the condition in which human populations may become too large to be…
Orca
LegendaryAttack 91The orca, or killer whale, is a toothed whale and the largest member of the oceanic dolphin family.
Photo Robert Pittman, Public domain
Coyote
EpicAttack 91The coyote (/kaɪoʊt/, KY-oh-t) is a species of canine also known as the American jackal, prairie wolf, and brush wolf.
Photo Yathin S Krishnappa, CC BY-SA 3.0
Bacteria
RareAttack 91Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell.
Photo NIAID, Public domain
Neanderthal
LegendaryAttack 91Neanderthals ( nee-AN-də-TAHL, nay-, -THAHL; Homo neanderthalensis or sometimes Homo sapiens neanderthalensis) are an…
Photo Ryan Schwark, CC0
Reptile
EpicAttack 91Reptiles, as commonly defined, are tetrapod vertebrate animals with an ectothermic metabolism and amniotic development.
Photo Stewart Nimmo, CC BY-SA 4.0
Sustainable agriculture
UncommonAttack 91Sustainable agriculture is farming in a way that reduces environmental harm, aids and expands natural resources and ensures…
Yellowstone National Park
EpicAttack 91Yellowstone National Park is a national park of the United States located mainly in the northwest corner of the state of…
Photo Rhododendrites, CC BY-SA 4.0
Lake Erie
RareAttack 90Lake Erie is the fourth-largest lake by surface area of the five Great Lakes in North America and the eleventh-largest…
Photo NOAA, Public domain
North Sea
RareAttack 90The North Sea lies between Great Britain, Denmark, Norway, Germany, the Netherlands, Belgium, and France.
Sponge
RareAttack 90Sponges or sea sponges are primarily marine invertebrates of the animal phylum Porifera.
Moose
EpicAttack 90The moose or elk is the world's tallest, largest and heaviest extant species of deer and the only extant species in the…
Photo Paxson Woelber, CC BY-SA 4.0
Diamond
EpicAttack 90Diamond is a mineral form of the element carbon with its atoms arranged in a crystal structure called diamond cubic.
Photo DGPC/ADF Luísa Oliveira, CC0
Sea otter
RareAttack 89The sea otter is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean.
Eurasian eagle-owl
RareAttack 89The Eurasian eagle-owl is a species of eagle-owl, a type of bird that resides much over Eurasia.
Turtle
RareAttack 89Turtles are reptiles characterized by a special shell developed mainly from their ribs.
Bryozoa
UncommonAttack 89The Bryozoa are a phylum of simple, aquatic invertebrate animals, nearly all living in sedentary colonies.
Photo Ernst Haeckel, Public domain
Everglades
RareAttack 89The Everglades is a natural region of flooded grasslands in the southern portion of the U.S.
Photo Daniel Kraft, CC BY-SA 3.0
Tree
RareAttack 89In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves.
Photo menergo, CC BY-SA 3.0
Bullfighting
RareAttack 89Bullfighting is a physical contest that involves a bullfighter attempting to subdue, immobilize, or kill a bull, usually…
Great Lakes
LegendaryAttack 89The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes…
Photo NASA, Public domain
Black Sea
EpicAttack 89The Black Sea is a marginal sea located between Europe and Asia, east of the Balkans, south of the East European Plain, west…
Photo The SeaWiFS Project, Public domain
Cucurbita
UncommonAttack 88Cucurbita is a genus, native to the Andes and Mesoamerica, of herbaceous fruits in the gourd family, Cucurbitaceae.
Photo Chiswick Chap, CC BY-SA 4.0
Crocodylia
UncommonAttack 88Crocodylia or Crocodilia is an order of semiaquatic, predatory reptiles that are known as crocodilians.
Photo LittleJerry, CC BY-SA 4.0
Rabbit
EpicAttack 88Rabbits, or bunnies, are small mammals in the family Leporidae, which is in the order Lagomorpha.
Photo JM Ligero Loarte, CC BY 3.0
Sheep
EpicAttack 88Sheep or domestic sheep are a domesticated ruminant mammal typically kept as livestock.
Photo Keith Weller, Public domain
Sleep
RareAttack 88Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is…
Photo Domenico Fetti, Public domain
Algae
RareAttack 88Algae are any of a large and diverse group of photosynthetic organisms.
Photo Toby Hudson, CC BY-SA 3.0
Grand Canyon
EpicAttack 88The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States.
Photo Lennart Sikkema, CC BY 3.0
Crocodile
EpicAttack 88A crocodile or true crocodile is a large, semiaquatic reptile that lives throughout the tropics in Africa, Asia, the…
Photo Leigh Bedford, CC BY 2.0
Bee
RareAttack 88Bees are winged insects that form a monophyletic clade Anthophila within the superfamily Apoidea of the order Hymenoptera…
Great Smoky Mountains National Park
UncommonAttack 88Great Smoky Mountains National Park is a national park of the United States in the southeast, with parts in North Carolina…
Photo AppalachianCentrist, CC BY-SA 4.0
Eucalyptus
RareAttack 88Eucalyptus is a genus of more than 700 species of flowering plants in the family Myrtaceae.
Photo Ethel Aardvark, CC BY 3.0
Bivalvia
UncommonAttack 88Bivalvia or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of aquatic…
Photo Ernst Haeckel, Public domain
Indian Ocean
RareAttack 88The Indian Ocean is the third-largest of the world's five oceanic divisions, covering 70,560,000 km2 or approximately 20% of…
Great Barrier Reef
RareAttack 88The Great Barrier Reef is the world's largest coral reef system, composed of over 2,900 individual reefs and 900 islands…
Photo NASA/Kjell Lindgren, Public domain
Common starling
RareAttack 87The common starling, also known simply as the starling in Great Britain and Ireland, and as the European starling in North…
Photo Charles J. Sharp, CC BY-SA 4.0
Denisovan
EpicAttack 87The Denisovans or Denisova hominins ( də-NIS-ə-və) are an extinct species or subspecies of archaic human that ranged across…
Photo Fu et al. (2025), CC BY 4.0
Mineral
UncommonAttack 87In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined…
Photo Géry PARENT, CC BY-SA 3.0
Jaguar
EpicAttack 87The jaguar is a large cat species and the only living member of the genus Panthera that is native to the Americas.
Photo USFWS, Public domain
Cosmic microwave background
RareAttack 87The cosmic microwave background, or relic radiation, is microwave radiation that fills all space in the observable universe.
Monocotyledon
UncommonAttack 87Monocotyledons, commonly referred to as monocots, are flowering plants whose seeds contain only one embryonic leaf, or…
Photo Ramjchandran, CC BY-SA 4.0
Life
EpicAttack 87Life is the capacity in matter, formed of one or more units called cells, for processes such as cell signalling…
Archaeopteryx
RareAttack 87Archaeopteryx, sometimes referred to by its German name, "Urvogel " is an extinct genus of bird-like dinosaurs.
Plankton
RareAttack 87Plankton are organisms that drift in water but are unable to actively propel themselves against currents.
Leaf
UncommonAttack 87A leaf is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for…
Thought
RareAttack 87Thought, or thinking, is a cognitive process in which the mind considers, creates, or manipulates ideas, representations, or…
Photo Satyakamk, CC BY-SA 3.0
Iguanodon
UncommonAttack 86Iguanodon, named in 1825, is a genus of iguanodontian dinosaur.
Photo Ben2, CC BY-SA 3.0
Sawfish
UncommonAttack 86Sawfish are a family of very large rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with…
Alps
RareAttack 86The Alps are some of the highest and most extensive mountain ranges in Europe, stretching approximately 1,200 km across…
Peach
RareAttack 86The peach is a deciduous tree that bears edible juicy fruits with various characteristics.
European bison
RareAttack 86The European bison or the European wood bison, also known as the wisent, the zubr, or sometimes colloquially as the European…
Photo Charles J. Sharp, CC BY-SA 4.0
Wetland
UncommonAttack 86A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for…
Cougar
EpicAttack 86The cougar, also called puma, mountain lion, catamount, and panther, is a large feline native to the Americas.
Atlantis
EpicAttack 86Atlantis is a fictional island mentioned in Plato's works Timaeus and Critias as part of an allegory on the hubris of…
Photo Athanasius Kircher, Public domain
Niagara Falls
EpicAttack 86Niagara Falls is a group of three waterfalls at the southern end of Niagara Gorge, spanning the border between the Canadian…
Photo Saffron Blaze, CC BY-SA 3.0
Bumblebee
RareAttack 86A bumblebee is any of over 250 species in the genus Bombus, part of Apidae, one of the bee families.
Photo Ivar Leidus, CC BY-SA 4.0
Dinoflagellate
UncommonAttack 86The dinoflagellates (from Ancient Greek δῖνος 'whirling' and Latin flagellum 'whip, scourge'), also called dinophytes, are a…
Photo Ernst Haeckel, Public domain
Salamander
RareAttack 86Salamanders are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt…
Snow
UncommonAttack 86Snow is a form of solid atmospheric precipitation consisting of individual ice crystals that grow while suspended in the…
Galápagos Islands
EpicAttack 86The Galápagos Islands are an archipelago of volcanic islands in the Eastern Pacific, located around the equator, 485…
Photo Diego Delso, CC BY-SA 4.0
South Island
UncommonAttack 86The South Island is the larger of the two main islands of New Zealand by surface area, the other being the smaller but more…
Photo Norman Kuring, Public domain
Carnivorous plant
UncommonAttack 86Carnivorous plants are plants that derive some or most of their nutrients from trapping and consuming animals or protozoans…
Photo JeremiahsCPs, CC BY-SA 3.0
Koala
EpicAttack 85The koala, sometimes inaccurately called the koala bear, is an arboreal herbivorous marsupial native to Australia.
Photo Diliff, CC BY-SA 3.0
Dromedary
RareAttack 85The dromedary, also known as the dromedary camel, Arabian camel and one-humped camel, is a large camel of the genus Camelus…
Photo Florian Prischl, CC BY-SA 3.0
Salween River
UncommonAttack 85The Salween is a Southeast Asian river, about 3,289 km long, flowing from the Tibetan Plateau south into the Andaman Sea.
Photo Saosukham, CC BY-SA 4.0
West Lake
UncommonAttack 85West Lake, also known as Xihu and by other names, is a freshwater lake in Hangzhou, China.
Photo Takashishin, CC BY 4.0
Pteropus
UncommonAttack 85Pteropus is a genus of megabats which are among the largest bats in the world.
Photo Charles J. Sharp, CC BY-SA 4.0
Mauna Loa
RareAttack 85Mauna Loa is one of five volcanoes that form the Island of Hawaii in the U.S.
Photo J.D. Griggs, Public domain
Denali
EpicAttack 85Denali, federally designated as Mount McKinley, is the highest mountain peak in North America, with a summit elevation of…
Hispaniola
EpicAttack 85Hispaniola is an island in the Greater Antilles of the Caribbean, located between Cuba and Puerto Rico.
Polymerase chain reaction
UncommonAttack 85The polymerase chain reaction is a laboratory method widely used to amplify copies of specific DNA sequences rapidly, to…
Photo explorebiology, CC BY 4.0
Polynesia
EpicAttack 85Polynesia is a subregion of Oceania, made up of more than 1,000 islands scattered over the central and southern Pacific…
Photo Hobe / Holger Behr, Public domain
British Isles
RareAttack 85The British Isles, also called "these islands" in diplomatic settings, are an archipelago in the North Atlantic Ocean off…
Rockall
UncommonAttack 84Rockall is a 17.15-metre-high, uninhabitable granite islet in the North Atlantic Ocean.
Photo Andy Strangeway, CC BY-SA 2.0
Banff National Park
UncommonAttack 84Banff National Park is Canada's first national park, established in 1885 as Rocky Mountains Park.
Photo Gorgo, Public domain
Shrimp
RareAttack 84A shrimp (pl.: shrimp or shrimps) is a common name typically used for crustaceans with an elongated body and a primarily…
Photo Etrusko25, Public domain
Pontederia crassipes
UncommonAttack 84Pontederia crassipes, commonly known as common water hyacinth, is an aquatic plant native to South America, naturalized…
Photo Wouter Hagens, Public domain
Cassava
EpicAttack 84Manihot esculenta, commonly called cassava, manioc, or yuca, is a woody shrub of the spurge family, Euphorbiaceae, native to…
Millipede
RareAttack 84Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they…
Lilium
RareAttack 84Lilium is a genus of herbaceous flowering plants growing from bulbs, all with large and often prominent flowers.
Photo Stan Shebs, CC BY-SA 3.0
Eurypterid
UncommonAttack 84Eurypterids, often informally called sea scorpions, are a group of extinct marine arthropods that form the order Eurypterida.
Photo H. Zell, CC BY-SA 3.0
Rhododendron
RareAttack 84Rhododendron, from Ancient Greek ῥόδον, meaning "rose", and δένδρον, meaning "tree", is a very large genus of about 1,024…
Photo albert kok, CC BY 3.0
Glacier
RareAttack 84A glacier is a persistent body of natural ice, a form of rock, that is constantly moving under its own weight.
Indus River
RareAttack 84The Indus is a transboundary river of Asia and a trans-Himalayan river of South and Central Asia.
Photo Heavyrunner, CC BY-SA 3.0
Dead Sea
EpicAttack 84The Dead Sea, also known by other names, is a landlocked salt lake bordered by Jordan to the east, the West Bank to the west…
Photo لا روسا, CC BY-SA 4.0
English Channel
RareAttack 84The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from…
Photo Joowwww, Public domain
Yellow River
RareAttack 84The Yellow River, also known as Huang he, is the second-longest river in China and the sixth-longest in the world, with an…
Photo fading, CC BY-SA 3.0
Platypus
EpicAttack 83The platypus, sometimes referred to as the duck-billed platypus, is a semiaquatic, egg-laying mammal endemic to eastern…
Photo Charles J. Sharp, CC BY-SA 4.0
Hippopotamus
EpicAttack 83The hippopotamus, often shortened to hippo, further qualified as the common hippopotamus, Nile hippopotamus and river…
Photo Muhammad Mahdi Karim, CC BY-SA 4.0
Emu
RareAttack 83The emu is a species of flightless bird endemic to Australia, where it is the tallest native bird.
Strepsirrhini
UncommonAttack 83Strepsirrhini or Strepsirhini is a suborder of primates that includes the lemuriform primates, which consist of the lemurs…
Boletus edulis
UncommonAttack 83Boletus edulis is a basidiomycete fungus, and the type species of the genus Boletus.
Photo ReddishClover, CC BY-SA 4.0
Komodo dragon
LegendaryAttack 83The Komodo dragon, also known as the Komodo monitor, is a large reptile of the monitor lizard family Varanidae that is…
Hindu Kush
RareAttack 83The Hindu Kush is an 800-kilometre-long mountain range in Central and South Asia to the west of the Himalayas.
Avocado
EpicAttack 83The avocado, alligator pear or avocado pear is an evergreen tree in the laurel family.
Photo B.navez, CC BY-SA 3.0
Lamprey
RareAttack 83Lampreys are a group of jawless fish composing the order Petromyzontiformes , sole order in the class Petromyzontida.
Photo Tiit Hunt, CC BY-SA 3.0
Procellariiformes
UncommonAttack 83Procellariiformes is an order of seabirds that comprises four families; the albatrosses, the petrels and shearwaters, and…
Great Britain
EpicAttack 83Great Britain is an island in the North Atlantic Ocean off the north-west coast of continental Europe.
Penguin
EpicAttack 83Penguins are a group of flightless semi-aquatic sea birds which live almost exclusively in the Southern Hemisphere.
Photo Godot13, CC BY-SA 4.0
Mekong
RareAttack 83The Mekong or Mekong River is a transboundary river in East Asia and Southeast Asia.
Mount Kenya
UncommonAttack 83Mount Kenya is the second highest mountain in Africa and the namesake of the country Kenya.
Photo Don Elvis Muraya, CC BY-SA 4.0
Arabidopsis thaliana
UncommonAttack 83Arabidopsis thaliana, the thale cress, mouse-ear cress or arabidopsis, is a small plant from the mustard family, native to…
Caspian Sea
EpicAttack 83The Caspian Sea is the world's largest inland body of water, also described as the world's largest lake and usually referred…
Taiga
RareAttack 83Taiga or tayga, also known as boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly…
Ice age
RareAttack 83An ice age is a period of time when decreased temperature of Earth's surface and atmosphere results in the prolonged…
Photo Ittiz, CC BY-SA 3.0
Lake
UncommonAttack 83A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface.
Sundarbans
UncommonAttack 83Sundarbans is a mangrove forest area in the Ganges Delta formed by the confluence of the Ganges, Brahmaputra and Meghna…
Photo Shihabur Rahman, CC BY-SA 4.0
Appalachian Mountains
EpicAttack 83The Appalachian Mountains are a vast mountain range situated in eastern North America, extending roughly 2,050 miles from…
Photo J Guth, CC BY-SA 3.0
Ginkgo biloba
EpicAttack 82Ginkgo biloba, commonly known as ginkgo, also known as the maidenhair tree, and often misspelled "gingko" is a species of…
Scorpion
RareAttack 82Scorpions are predatory arachnids with eight legs, a pair of grasping pincers and a narrow, segmented tail, often carried in…
Photo Shantanu Kuveskar, CC BY-SA 4.0
Thunderstorm
UncommonAttack 82A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of…
Photo Mathias Krumbholz, CC BY-SA 3.0
Drought
UncommonAttack 82A drought is a period of drier-than-normal conditions.
Photo Pmau, CC BY-SA 4.0
Gene expression
UncommonAttack 82Gene expression is the process by which the information contained within a gene is used to produce a functional gene…
Photo mitopencourseware, CC BY-SA 4.0
Learning
UncommonAttack 82Learning is the process of acquiring new understanding, knowledge, behavior, skills, values, attitudes, and preferences.
European badger
RareAttack 81The European badger, also known as the Eurasian badger, is a species of badger in the family Mustelidae native to Europe and…
Photo Charles J. Sharp, CC BY-SA 4.0
Whale shark
EpicAttack 81The whale shark is a slow-moving, filter-feeding carpet shark and the largest known extant fish species.
Photo Abe Khao Lak, CC BY-SA 4.0
K2
LegendaryAttack 81K2, also known as Mount Godwin-Austen, at 8,611 metres above sea level, is the second-highest mountain on Earth, after Mount…
Photo Zacharie Grossen, CC BY-SA 4.0
Yamuna
UncommonAttack 81The Yamuna is the second-largest tributary river of the Ganges by discharge and the longest tributary in India.
Photo Umang108, CC BY-SA 4.0
Chicken
EpicAttack 81The chicken is the domesticated form of the red junglefowl, originally native to Southeast Asia.
Peanut
EpicAttack 81The peanut, also known as the groundnut, goober, goober pea, pindar or monkey nut, is a legume crop grown mainly for its…
Kangaroo
EpicAttack 81Kangaroos are marsupials from the subfamily Macropodinae.
Photo Charles J. Sharp, CC BY-SA 4.0
Mackenzie River
UncommonAttack 81The Mackenzie River (French: Fleuve Mackenzie; Slavey: Deh-Cho [tèh tʃʰò], literally big river; Inuvialuktun: Kuukpak…
Photo David Adamec, Public domain
Lizard
RareAttack 81Lizard is the common name used for all squamate reptiles that are not snakes, encompassing over 7,000 species.
Photo Basile Morin, CC BY-SA 4.0
Strait of Magellan
RareAttack 81The Strait of Magellan, also called the Straits of Magellan, is a navigable sea route in southern Chile separating mainland…
Loire
UncommonAttack 81The Loire is the longest river in France and the 171st-longest in the world.
Photo Cramos, CC BY-SA 4.0
Sulawesi
RareAttack 81Sulawesi, also known as Celebes, is an island in Indonesia.
Photo Sadalmelik, CC BY-SA 3.0
Ecological niche
UncommonAttack 81In ecology, a niche refers to the specific environmental condition occupied by a species or population.
Photo Kay-africa, CC BY-SA 3.0
Corvidae
RareAttack 81Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, magpies, jackdaws, jays…
Photo Alexis Lours, CC BY 4.0
Mount Fuji
EpicAttack 81Mount Fuji is an active stratovolcano located on the Japanese island of Honshu, with a summit elevation of 3,776.24 m.
Photo Suicasmo, CC BY-SA 4.0
Brahmaputra River
RareAttack 81The Brahmaputra is a trans-boundary river which flows through Southwestern China, Northeastern India, and Bangladesh.
Photo Pfly, CC BY-SA 3.0
Pearl
RareAttack 81A pearl is a hard, shiny object produced within the soft tissue of a living shelled mollusk.
Photo MASAYUKI KATO, CC BY-SA 3.0
Perissodactyla
UncommonAttack 81Perissodactyla, or odd-toed ungulates, is an order of ungulates.
Photo LittleJerry, CC BY-SA 4.0
Amanita phalloides
RareAttack 80Amanita phalloides, commonly known as the death cap, is a deadly poisonous basidiomycete fungus and mushroom, one of many in…
Photo Archenzo, CC BY-SA 3.0
Green iguana
UncommonAttack 80The green iguana, also known as the American iguana or the common green iguana, is a large, arboreal, mostly herbivorous…
Photo Hans Hillewaert, CC BY-SA 4.0
Cassowary
EpicAttack 80Cassowaries are flightless birds of the genus Casuarius, in the order Casuariiformes.
Barley
RareAttack 80Barley, a member of the grass family, is a major cereal grain grown in temperate climates globally.
Bovidae
RareAttack 80Bovidae is the biological family of cloven-hoofed, ruminant mammals that includes cattle, bison, buffalo, antelopes, and…
Photo MathKnight, CC BY-SA 4.0
Tinamou
UncommonAttack 80Tinamous are members of the order Tinamiformes, and family Tinamidae, divided into two distinct subfamilies, containing 46…
Photo Dominic Sherony, CC BY-SA 2.0
Flood management
UncommonAttack 80Flood management or flood control are methods used to reduce or prevent the detrimental effects of flood waters.
Photo Risker ( talk ), CC BY-SA 3.0
Hyena
EpicAttack 80Hyenas or hyaenas are feliform carnivoran mammals belonging to the family Hyaenidae.
Photo Termininja, CC BY-SA 4.0
Lesbos
RareAttack 80Lesbos or Lesvos is a Greek island located in the northeastern Aegean Sea.
Photo Koutrolm, Public domain
Goat
EpicAttack 80The goat or domestic goat is a species of goat-antelope that is mostly kept as livestock.
Irish Sea
UncommonAttack 80The Irish Sea is a 46,007 km2 body of water that separates the islands of Ireland and Great Britain.
Euphrates
RareAttack 80The Euphrates is the longest and one of the most historically important rivers of West Asia.
Flood
UncommonAttack 80A flood is an overflow of water that submerges land that is usually dry.
Photo johndal, CC BY-SA 2.0
New Guinea
EpicAttack 80New Guinea is the world's second-largest island, with an area of 785,753 km2.
Photo SaltedSturgeon, CC BY-SA 4.0
Atacama Desert
RareAttack 80The Atacama Desert is a desert plateau on the Pacific coast of South America, stretching along a 1,600-kilometre-long strip…
Photo NASA, Public domain
Marine invertebrates
UncommonAttack 80Marine invertebrates are invertebrate animals that live in marine habitats, and make up most of the macroscopic life in the…
Photo Ernst Haeckel, Public domain
Fish as food
UncommonAttack 80Many species of fish are caught by humans and consumed as food in virtually all regions around the world.
Photo User:Mattes, Public domain
Landslide
UncommonAttack 80Landslides, also known as landslips, rockslips, rockfalls, mudslides, mudslips or rockslides, are several forms of mass…
Cell signaling
UncommonAttack 80Cell signaling is the biological process by which a cell interacts with itself, with other cells, and with the environment.
Photo explorebiology, CC BY 4.0
Brown algae
UncommonAttack 80Brown algae are a large group of photoautotrophic, multicellular SAR comprising the class Phaeophyceae.
Photo Stef Maruch, CC BY-SA 2.0
Color vision
UncommonAttack 80Color vision, a feature of visual perception, is an ability to perceive differences between light composed of different…
Andes
RareAttack 80The Andes, Andes Mountains or Andean Mountain Range are the longest continental mountain range in the world, forming a…
Photo Diego Delso, CC BY-SA 3.0
Sendai
UncommonAttack 80Sendai is the capital city of Miyagi Prefecture and the largest city in the Tōhoku region.
Photo Nryate, CC BY-SA 4.0
Natural rubber
RareAttack 80Rubber, also called India rubber, latex, Amazonian rubber, caucho, or caoutchouc, as initially produced, consists of…
Photo Gradstudentscholar, CC BY-SA 4.0
Wolverine
EpicAttack 79The wolverine, also called the carcajou or quickhatch, is the largest land-dwelling member of the family Mustelidae.
Photo Esquilo, CC BY-SA 3.0
Rattlesnake
RareAttack 79Rattlesnakes are venomous snakes that form the genera Crotalus and Sistrurus of the subfamily Crotalinae.
River
RareAttack 79A river is a natural stream of fresh water that flows on land or inside caves towards another body of water at a lower…
Photo Basile Morin, CC BY-SA 4.0
Ocean sunfish
EpicAttack 79The ocean sunfish, also known as the common mola, is one of the largest ray-finned fish in the world.
Paranthropus
UncommonAttack 79Paranthropus is a genus of extinct hominin which contains three widely accepted species: P.
Photo Einsamer Schütze, CC BY-SA 4.0
Cerrado
UncommonAttack 79The Cerrado is a vast ecoregion of tropical savanna in central Brazil, being present in the states of Goiás, Mato Grosso do…
Photo Angeladepaula, CC BY-SA 3.0
Chameleon
RareAttack 79Chameleons are a distinctive and highly specialized clade of Old World lizards with 200 species described as of June 2015.
Photo Rod Waddington, CC BY-SA 2.0
Groundwater
UncommonAttack 79Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock…
Photo Shigeru23, CC BY-SA 3.0
Coral Sea
UncommonAttack 79The Coral Sea is a marginal sea of the South Pacific off the northeast coast of Australia, and classified as an interim…
Photo NormanEinstein, CC BY-SA 3.0
Erosion
UncommonAttack 79Erosion is the action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's…
Photo Katharina Helming, CC BY-SA 1.0
Mount Etna
EpicAttack 79Mount Etna, or simply Etna, is an active stratovolcano on the east coast of Sicily, Italy, in the Metropolitan City of…
Photo BenAveling, CC BY-SA 4.0
Intensive farming
UncommonAttack 79Intensive agriculture, also known as intensive farming, conventional, or industrial agriculture, is a type of agriculture…
Photo Dag Endresen, CC BY 3.0
Extremophile
UncommonAttack 79An extremophile (from Latin extremus 'extreme' and Ancient Greek φιλία 'love') is an organism that is able to live or even…
Photo Carsten Steger, CC BY-SA 4.0
Mont Blanc
EpicAttack 79Mont Blanc is a mountain in the Alps, rising 4,807.3 m above sea level, located right at the Franco-Italian border.
Photo Hseugut, CC BY-SA 4.0
Fishing
UncommonAttack 79Fishing is the activity of trying to catch fish.
Photo Bernard Gagnon, CC BY-SA 3.0
Coccinellidae
RareAttack 78Coccinellidae is a widespread family of small beetles.
Photo Francisco Welter-Schultes, CC0
Ice sheet
UncommonAttack 78In glaciology, an ice sheet, also known as a continental glacier, is a mass of glacial ice that covers surrounding terrain…
Photo Dave Pape, Public domain
Pineapple
EpicAttack 78The pineapple is a tropical plant with an edible fruit; it is the most economically significant plant in the family…
Electric eel
RareAttack 78The electric eels are a genus, Electrophorus, of neotropical freshwater fish from South America in the family Gymnotidae, of…
Photo Steven G. Johnson, CC BY-SA 3.0
Lava
UncommonAttack 78Lava is magma that has been expelled from the interior of a terrestrial planet or a moon onto its surface.
Photo Giles Laurent, CC BY-SA 4.0
Secretarybird
RareAttack 78The secretarybird or secretary bird is a large bird of prey that is endemic to Africa.
Photo Sumeet Moghe, CC BY-SA 4.0
Locust
RareAttack 78Locusts are various species of short-horned grasshoppers in the family Acrididae that have a swarming phase.
Photo Holger Krisp, CC BY 3.0
Lettuce
UncommonAttack 78Lettuce is an annual plant of the family Asteraceae mostly grown as a leaf vegetable.
Photo en:User:Geographer, CC BY 1.0
Hot spring
UncommonAttack 78A hot spring, thermal spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of…
Sorghum
RareAttack 78Sorghum bicolor, commonly called sorghum and also known as broomcorn, great millet, Indian millet, Guinea corn, jowar, or…
Chili pepper
RareAttack 78Chili peppers, also spelled chile or chilli, are varieties of berry-fruit plants from the genus Capsicum, which are members…
Photo Takeaway, CC BY-SA 4.0
Herbal medicine
UncommonAttack 78Herbal medicine is the study of pharmacognosy and the use of medicinal plants, which are a basis of traditional medicine.
Photo Øyvind Holmstad, CC BY-SA 3.0
Niger River
UncommonAttack 78The Niger River ( NY-jər; French: fleuve Niger [ flœv niʒɛʁ]) is the main river of West Africa, extending about 4,180…
Photo NigerTZai, CC BY-SA 4.0
Poultry
UncommonAttack 78Poultry are domesticated birds kept by humans for the purpose of harvesting animal products such as meat, eggs or feathers.
Photo L. Prang & Co., Public domain
Meteor shower
UncommonAttack 78A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in…
Photo ESO/ P. Horalek, CC BY 4.0
Guppy
UncommonAttack 78The guppy, also known as the millionfish or rainbow fish, is a member of the family Poeciliidae and, akin to most New World…
Photo Per Harald Olsen, CC BY 3.0
Common pheasant
UncommonAttack 78The common pheasant, ring-necked pheasant, or blue-headed pheasant, is a bird in the pheasant family.
Aegean Sea
RareAttack 78The Aegean Sea is an elongated embayment of the Mediterranean Sea between Europe and Asia.
Photo InNeed95, CC BY-SA 4.0
Hudson Bay
RareAttack 78Hudson Bay, sometimes called Hudson's Bay, is a large body of saltwater in northeastern Canada with a surface area of…
Photo NASA, Public domain
Rio Grande
RareAttack 78The Rio Grande, in the United States, or the Río Bravo, in Mexico, also known as Tó Ba'áadi in Navajo, is one of the…
Photo Glysiak, CC BY-SA 3.0
Irrawaddy River
UncommonAttack 78The Irrawaddy River is the principal river of Myanmar, running through the centre of the country.
Rocky Mountains
EpicAttack 78The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America.
Photo GrandTetonNPS, Public domain
Tropical rainforest
UncommonAttack 78Tropical rainforests are dense and warm rainforests with high rainfall typically found between 10° north and south of the…
Photo lubasi, CC BY-SA 2.0
Gastropod
UncommonAttack 78Gastropods are a vast and diverse group of invertebrates within the phylum Mollusca, comprising the animals commonly known…
Uluru
RareAttack 78Uluru, also known as Ayers Rock and officially gazetted as Uluru / Ayers Rock, is a large sandstone monolith.
Photo Ek2030372672, CC BY-SA 4.0
Vistula
UncommonAttack 78The Vistula is the longest river in Poland and the longest river draining into the Baltic Sea, at 1,047 kilometres in length.
Photo Mariusz Guć, CC BY-SA 4.0
Fermentation
UncommonAttack 78Fermentation is a type of anaerobic metabolism that harnesses the redox potential of the reactants to make adenosine…
Photo Tjhackmann, CC BY-SA 4.0
Behavioral modernity
UncommonAttack 78Behavioral modernity is a suite of behavioral and cognitive traits associated with humans, reflecting capacities such as…
Photo EU, Public domain
Mount Olympus
RareAttack 78Mount Olympus (Greek: Όλυμπος, romanized: Ólympos, IPA: [ˈolibos]) is an extensive massif near the Thermaic Gulf of the…
Photo kallerna, CC BY-SA 4.0
Apennine Mountains
UncommonAttack 78The Apennines or Apennine Mountains are a mountain range consisting of parallel smaller chains extending c.
Veneration of the dead
UncommonAttack 78The veneration of the dead, including one's ancestors, is based on love and respect for the deceased.
Macaque
RareAttack 77The macaques constitute a genus of gregarious Old World monkeys of the subfamily Cercopithecinae.
Photo Shantanu Kuveskar, CC BY-SA 4.0
Lake Malawi
UncommonAttack 77Lake Malawi, also known as Lake Nyasa in Tanzania and Lago Niassa in Mozambique, is an African Great Lake and the…
Andalusian horse
UncommonAttack 77The Andalusian, also known as the Pure Spanish Horse, is a Spanish breed of riding horse from the Iberian Peninsula, where…
Photo Just chaos, CC BY 2.0
Osprey
EpicAttack 77The osprey, historically known as sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey with a…
Oat
RareAttack 77The oat, sometimes called the common oat, is a species of cereal grass grown for fodder and for its seed, which is known by…
Photo Christian Fischer, CC BY-SA 4.0
Kaziranga National Park
UncommonAttack 77Kaziranga National Park is a national park and World Heritage Site in the Golaghat, Sonitpur, Biswanath and Nagaon districts…
Photo Diganta Talukdar, CC BY-SA 4.0
Cyclone
RareAttack 77In meteorology, a cyclone is a large air mass that rotates around a strong center of low atmospheric pressure…
Fig
RareAttack 77The fig is the edible fruit of Ficus carica, a species of tree or shrub in the flowering plant family Moraceae, native to…
Photo Trew, C.J, Public domain
Western Ghats
RareAttack 77The Western Ghats, also known as the Sahyadri, is a mountain range that stretches 1,600 km along the west coast of India.
Photo Mdmadhu, CC BY-SA 4.0
Symbiosis
UncommonAttack 77Symbiosis is any close and long-term biological interaction between two organisms of different species.
Photo Jan Derk, Public domain
Passerine
EpicAttack 77A passerine is any bird of the order Passeriformes.
Photo MathKnight, CC BY-SA 4.0
River delta
UncommonAttack 77A river delta is a landform, typically triangular, created by the deposition of the sediments that are carried by the waters…
Photo none (Landsat), Public domain
2011 Halloween nor'easter
UncommonAttack 77The 2011 Halloween nor'easter, sometimes referred to as "Snowtober," "Shocktober," "Storm Alfred," and "Oktoberblast," was a…
Monsoon
RareAttack 77A monsoon is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation, but now used to…
Photo w:user:PlaneMad, CC BY-SA 3.0
Red-eared slider
UncommonAttack 77The red-eared slider or red-eared terrapin is a subspecies of the pond slider, a terrapin belonging to the family Emydidae.
Photo Greg Hume, CC BY-SA 3.0
Lake Superior
EpicAttack 77Lake Superior is a lake in central North America.
Photo NASA, Public domain
1982 Atlantic hurricane season
CommonAttack 77The 1982 Atlantic hurricane season was a well-below average Atlantic hurricane season with five named tropical storms and…
Photo Supportstorm, Public domain
Endangered species
UncommonAttack 77An endangered species is a species having a very high risk of extinction in the near future, either worldwide or in a…
Photo Jeroen Kransen, CC BY-SA 2.0
Reservoir
UncommonAttack 77A reservoir is an enlarged lake behind a dam, usually built to store fresh water, often doubling for hydroelectric power…
Photo Joanapeewa, CC BY-SA 4.0
Hay
UncommonAttack 77Hay is grass, legumes, or other herbaceous plants that have been cut and dried to be stored for use as animal fodder, either…
Photo Montanabw, CC BY-SA 3.0
Palaeognathae
UncommonAttack 77Palaeognathae (from Ancient Greek παλαιός 'old' and γνάθος 'jaw') is an infraclass of birds, called paleognaths or…
Senegal River
UncommonAttack 77The Senegal River (Serer: "Seen O Gal" or "Senegal" - compound of the Serer term "Seen" or "Sene" or "Sen" and "O Gal")…
Photo WILLAV-FR, CC BY-SA 4.0
Postville raid
CommonAttack 77The Postville raid was a raid at the Agriprocessors, Inc., kosher slaughterhouse and meat packing plant in Postville, Iowa…
Photo Matthew Walleser, CC BY 2.0
Planck units
RareAttack 77In particle physics and physical cosmology, Planck units are a system of units of measurement defined exclusively in terms…
Photo Avsa, CC BY-SA 4.0
Combustion
UncommonAttack 77Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel and an oxidant, usually…
Photo Vyacheslav Argenberg, CC BY 4.0
Clathrate gun hypothesis
UncommonAttack 76The clathrate gun hypothesis is a proposed explanation for the periods of rapid warming during the Quaternary.
Photo Williamborg, Public domain
Sumidero Canyon
UncommonAttack 76Sumidero Canyon is a deep natural canyon located just north of the city of Chiapa de Corzo in the state of Chiapas, in…
Photo Jan Harenburg, CC BY 4.0
Beech
UncommonAttack 76Beech is a genus of deciduous trees in the family Fagaceae, native to subtropical and temperate Eurasia and North America.
Photo Own, Public domain
Red-billed chough
UncommonAttack 76The red-billed chough, Cornish chough or simply chough is a bird in the crow family, one of only two species in the genus…
Photo Alun Williams333, CC BY-SA 4.0
Chlorophyta
UncommonAttack 76Chlorophyta or chlorophytes is a major division of green algae, and is sister taxon to the other major division Charophyta…
Photo Ernst Haeckel, Public domain
Livestock
UncommonAttack 76Livestock are the domesticated animals that are raised in an agricultural setting mainly to provide labor and produce…
Photo Molgreen, CC BY-SA 4.0
Norwegian Sea
UncommonAttack 76The Norwegian Sea is a marginal sea, grouped with either the Atlantic Ocean or the Arctic Ocean, northwest of Norway between…
Photo Finn Rindahl, CC BY-SA 3.0
Centipede
RareAttack 76Centipedes are predatory arthropods belonging to the class Chilopoda of the subphylum Myriapoda, an arthropod group which…
Impala
UncommonAttack 76The impala or rooibok is a medium-sized antelope found in eastern and southern Africa.
Photo Charles J. Sharp, CC BY-SA 4.0
Date palm
RareAttack 76Phoenix dactylifera, commonly known as the date palm, is a flowering-plant species in the palm family Arecaceae, native to…
Photo Nepenthes, CC BY-SA 3.0
Iceberg
UncommonAttack 76An iceberg is a piece of fresh water ice more than 15 meters long that has broken off a glacier or an ice shelf and is…
Photo AWeith, CC BY-SA 4.0
Geyser
UncommonAttack 76A geyser is a spring with an intermittent water discharge ejected turbulently and accompanied by steam.
Photo Dietmar Rabich, CC BY-SA 4.0
Weather
LegendaryAttack 76Weather is the state of the Earth's atmosphere at a specific place and time, typically described in terms of temperature…
Beehive
UncommonAttack 76A beehive is an enclosed structure in which honey bees raise their young and produce honey as part of their seasonal cycle.
Photo Frank Schulenburg, CC BY-SA 4.0
Krakatoa
EpicAttack 76Krakatoa, also transcribed Krakatau, is a caldera in the Sunda Strait between the islands of Java and Sumatra in the…
Volga
RareAttack 76The Volga is the longest river in Europe and the longest endorheic basin river in the world.
Photo Alexxx1979, CC BY-SA 4.0
Sumatra
RareAttack 76Sumatra is one of the Sunda Islands of western Indonesia.
Photo Sadalmelik, CC BY-SA 3.0
Mount Pinatubo
UncommonAttack 76Mount Pinatubo is an active stratovolcano in the Zambales Mountains in Luzon in the Philippines.
Photo Sindre Helvik, CC BY 3.0
Rubiaceae
UncommonAttack 76Rubiaceae is a family of flowering plants, commonly known as the coffee, madder, or bedstraw family.
Hibernation
UncommonAttack 76Hibernation is a state of minimal activity and metabolic reduction entered by some animal species.
Photo Magne Flåten, CC BY-SA 4.0
Well
UncommonAttack 76A well is an excavation or structure created on the earth by digging, driving, or drilling to access liquid resources…
Photo Didiervberghe, Public domain
Sacrifice
UncommonAttack 76Sacrifice is an act or offering made to a deity.
Photo José Luiz, CC BY-SA 4.0
Ginger
RareAttack 75Ginger is a flowering plant whose rhizome, ginger root or ginger, is widely used as a spice and a folk medicine.
Beaufort Sea
UncommonAttack 75The Beaufort Sea is a marginal sea of the Arctic Ocean, located north of the Northwest Territories, Yukon, and Alaska, and…
Weathering
UncommonAttack 75Weathering is the deterioration of rocks, soils and minerals through contact with water, atmospheric gases, sunlight, and…
Photo Etan J. Tal, CC BY 3.0
Ural Mountains
RareAttack 75The Ural Mountains, or simply the Urals, are a mountain range in Eurasia that runs north–south mostly through Russia, from…
Gypsum
RareAttack 75Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.
Photo Didier Descouens, CC BY-SA 4.0
Fog
UncommonAttack 75Fog is a visible aerosol consisting of tiny water droplets or ice crystals held in the air near the Earth's surface.
Photo Abdul Momin, CC BY-SA 4.0
Jordan River
RareAttack 75The Jordan River or River Jordan, also known as Nahr Al-Sharieat, is a 251-kilometre-long endorheic river in the Levant that…
Photo Jean Housen, CC BY-SA 3.0
Grazing
UncommonAttack 75In agriculture, grazing is a method of animal husbandry whereby domestic livestock are allowed outdoors to free range and…
Photo 4028mdk09, CC BY-SA 3.0
Blizzard
UncommonAttack 75A blizzard is a severe snowstorm characterized by strong sustained winds and low visibility, lasting for a prolonged period…
Photo NOAA Photo Library, CC BY 2.0
Dnieper
UncommonAttack 75The Dnieper or Dnepr (NEE-pər), also known as the Dnipro (NEE-proh), is one of the major transboundary rivers of Europe…
Photo Dmitry A. Mottl, CC BY-SA 3.0
Amur
UncommonAttack 75The Amur River or Heilong River is a perennial river in Northeast Asia, forming the natural border between the Russian Far…
Pyrenees
RareAttack 75The Pyrenees is a mountain range in southwestern Europe, straddling the France–Spain border.
Mount Tai
UncommonAttack 75Mount Tai or Taishan is a mountain of historical and cultural significance located north of the city of Tai'an.
Photo xiquinhosilva, CC BY 2.0
Stove
UncommonAttack 75A stove or range is a device that generates heat inside or atop the device for local heating or cooking.
Photo Okkisafire, CC BY-SA 4.0
Liverwort
UncommonAttack 75Liverworts are non-vascular land plants in the division Marchantiophyta, also known as hepatics.
Photo Ernst Haeckel, Public domain
History of Central European forests
CommonAttack 75The history of Central European forests is characterised by thousands of years of exploitation by people.
Photo Moonwalker74, Public domain
Capybara
LegendaryAttack 74The capybara or greater capybara is the largest living rodent, native to all countries in South America except Chile.
Photo Giles Laurent, CC BY-SA 4.0
Chicory
RareAttack 74Common chicory is a somewhat woody, perennial herbaceous plant of the family Asteraceae, usually with bright blue flowers…
New World vulture
UncommonAttack 74Cathartidae, commonly known as New World vultures and condors, are a family of birds of prey consisting of seven extant…
Savanna
RareAttack 74A savanna or savannah is a mixed woodland-grassland biome and ecosystem characterised by the trees being sufficiently widely…
Photo ProfessorX, Public domain
Fox
EpicAttack 74Foxes are small-to-medium-sized omnivorous mammals belonging to several genera of the family Canidae.
Photo Joanne Redwood, CC0
Sea of Japan
UncommonAttack 74The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of…
Curiosity
UncommonAttack 74Curiosity can be a quality related to inquisitive thinking, such as exploration, investigation, and learning, evident in…
Photo Palonitor, CC BY-SA 4.0
Victoria Falls
RareAttack 74Victoria Falls is a waterfall on the Zambezi River, located on the border between Zambia and Zimbabwe.
Photo Diego Delso, CC BY-SA 4.0
Cultivar
UncommonAttack 74A cultivar is a kind of cultivated plant that people have selected for desired traits and which retains those traits when…
Photo Jon Sullivan, Public domain
Crassulacean acid metabolism
UncommonAttack 74Crassulacean acid metabolism, also known as CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as…
Brassicaceae
UncommonAttack 74Brassicaceae or Cruciferae is a medium-sized and economically important family of flowering plants commonly known as the…
Photo H. Zell, CC BY-SA 3.0
Amu Darya
UncommonAttack 74The Amu Darya, historically known as the Oxus, is a major river in Central Asia which flows through Afghanistan, Tajikistan…
Photo Petar Milošević, CC BY-SA 4.0
Cape of Good Hope
RareAttack 74The Cape of Good Hope (Afrikaans: Kaap de Goede Hoop [ˌkaːb də ˌɣudə ˈɦoːp] ; Portuguese: Cabo da Boa Esperança [ˈkaβu ðɐ…
Photo Diego Delso, CC BY-SA 4.0
Rainforest
RareAttack 74Rainforests are forests characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of…
Meadow
UncommonAttack 74A meadow is an open habitat or field, vegetated by grasses, herbs, and other non-woody plants.
Photo Nikater, Public domain
Carpathian Mountains
RareAttack 74The Carpathian Mountains or Carpathians are a range of mountains forming an arc across Central and Southeast Europe.
Photo Jakub Krajňák, CC0
Prairie
UncommonAttack 74Prairies are ecosystems considered part of the temperate grasslands, savannas, and shrublands biome by ecologists, based on…
Photo Peterwchen, CC BY-SA 4.0
Lamiaceae
UncommonAttack 74Lamiaceae or Labiatae is a family of flowering plants commonly known as mints, deadnettles, or sages.
Photo Daniel J. Layton, CC BY-SA 4.0
Aardvark
RareAttack 73The aardvark is a medium-sized, burrowing, nocturnal mammal native to Africa.
Photo Kelly Abram, CC BY 4.0
Alluvial fan
UncommonAttack 73An alluvial fan is an accumulation of sediments that fans outwards from a concentrated source of sediments, such as a narrow…
Photo en:user:Mikenorton, CC BY-SA 3.0
Ngorongoro Conservation Area
UncommonAttack 73Ngorongoro Conservation Area is a protected area and a UNESCO World Heritage Site located in Ngorongoro District, 180 km…
Photo Grahampurse, CC BY-SA 4.0
Seaweed
UncommonAttack 73Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae.
Photo Grubio--1, CC BY-SA 4.0
Stoma
UncommonAttack 73In botany, a stoma, also called a stomate, is a pore found in the epidermis of leaves, stems, and other organs, that…
Photo Photohound, Public domain
Krishna River
UncommonAttack 73The Krishnā River in the Deccan Plateau is the third-longest in India, after the Ganga and Godavari.
Photo Munna Aawara, CC BY-SA 4.0
Pond
UncommonAttack 73A pond is a small, still, land-based body of water formed by pooling inside a depression, either naturally or artificially.
Photo Agnes Monkelbaan, CC BY-SA 4.0
Tibetan Plateau
UncommonAttack 73The Tibetan Plateau, also known as the Qinghai–Tibet Plateau, Qingzang Plateau, is a vast elevated plateau located at the…
Photo NASA, Public domain
Waterfall
UncommonAttack 72A waterfall is any point in a river or stream where water flows over a vertical drop or a series of steep drops.
Photo Diego Delso, CC BY-SA 4.0
Nutrition
UncommonAttack 72Nutrition is the biochemical and physiological process by which an organism uses food and water to support its life.
Photo Anitava Roy, CC BY-SA 4.0
Sphagnum
UncommonAttack 72Sphagnum is a genus of approximately 380 accepted species of mosses, commonly known as sphagnum moss, also bog moss and…
Photo James K. Lindsey, CC BY-SA 3.0
Kati Thanda–Lake Eyre
CommonAttack 72Lake Eyre, officially known as Kati Thanda–Lake Eyre, is an endorheic lake in the east-central part of the Far North region…
Hornbill
UncommonAttack 72Hornbills are birds found in tropical and subtropical Africa, Asia and Melanesia of the family Bucerotidae.
Photo Shantanu Kuveskar, CC BY-SA 4.0
Karst
RareAttack 72Karst is a topography formed from the dissolution of soluble carbonate rocks such as limestone and dolomite.
Photo Anil Öztas, CC BY-SA 4.0
Parsnip
UncommonAttack 72The parsnip is a root vegetable closely related to carrot and parsley, all belonging to the flowering plant family Apiaceae.
Photo Didier Descouens, CC BY-SA 4.0
Animal migration
UncommonAttack 72Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis.
Bog
RareAttack 72A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials – often mosses, typically sphagnum…
Photo Roquai, Public domain
Yokuts Valley, California
CommonAttack 72Yokuts Valley is an unincorporated community located in Fresno County, California, at the foothills of the Sierra Nevada on…
Photo Smerdis, CC BY-SA 4.0
Rio Negro
UncommonAttack 72The Rio Negro, or Guainía as it is known in its upper part, is the largest left tributary of the Amazon River, the largest…
Photo Bites, CC BY-SA 3.0
Endoplasmic reticulum
UncommonAttack 72The endoplasmic reticulum is a part of a transportation system of the eukaryotic cell, and has many other important…
Ethnocentrism
UncommonAttack 72Ethnocentrism in social science and anthropology, as well as in colloquial English discourse, is the application of one's…
Photo Anjalukic, CC BY-SA 4.0
Frost
UncommonAttack 72Frost is a layer of ice on a solid surface, which forms from water vapor that deposits onto a freezing surface.
Photo JLPC, CC BY-SA 3.0
Ovenbird
CommonAttack 72Ovenbirds or furnariids are a large family of small suboscine passerine birds found from Mexico and Central to southern…
Photo Hector Bottai, CC BY 4.0
Cape Wrath
UncommonAttack 71Cape Wrath is a cape in the Durness parish of the county of Sutherland in the Highlands of Scotland.
Photo Colin Wheatley, CC BY-SA 2.0
Lychee
RareAttack 71Lychees are the fruit of the tree Litchi chinensis, the sole member of the genus Litchi, part of the soapberry family…
Photo B.navez, CC BY-SA 3.0
Yenisei
UncommonAttack 71The Yenisei or Yenisey is the fifth-longest river system in the world, and the largest to drain into the Arctic Ocean.
Photo Igrsan, CC BY-SA 4.0
Milkfish
UncommonAttack 71The milkfish is a widespread species of ray-finned fish found throughout the Indo-Pacific.
Photo Elisabeth Morcel, CC BY-SA 4.0
Greenland Sea
UncommonAttack 71The Greenland Sea is a body of water that borders Greenland to the west, the Svalbard archipelago to the east, Fram Strait…
Photo Jerzy Strzelecki, CC BY 3.0
Haddock
UncommonAttack 71The haddock is a saltwater ray-finned fish from the family Gadidae, the true cods.
Photo Steven G. Johnson, CC BY-SA 3.0
Rail
UncommonAttack 71Rails are a large, cosmopolitan family of small- to medium-sized terrestrial or semi-amphibious birds.
Photo Benjamint444, CC BY-SA 3.0
Ciliate
UncommonAttack 71The ciliates are a group of alveolates characterized by the presence of hair-like organelles called cilia, which are…
Mentha
UncommonAttack 71Mentha, also known as mint, is a genus of flowering plants in the mint family, Lamiaceae.
Photo C T Johansson, CC BY-SA 3.0
Behavioral enrichment
CommonAttack 71Behavioral enrichment is an animal husbandry principle that seeks to enhance the quality of captive animal care by…
Photo Fluteflute, CC BY-SA 3.0
Cephalopod intelligence
UncommonAttack 71Cephalopod intelligence is a measure of the cognitive ability of the cephalopod class of molluscs.
Photo damn_unique, CC BY-SA 2.0
Aconcagua
RareAttack 71Aconcagua is a mountain in the Principal Cordillera of the Andes range, located in Mendoza Province, Argentina.
Gulf Stream
RareAttack 71The Gulf Stream is a warm and swift Atlantic ocean current that originates in the Gulf of Mexico and flows through the…
Fault
UncommonAttack 71In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant…
Wolves and moose on Isle Royale
CommonAttack 71The single predator-single prey relationship between wolves and moose on Isle Royale in Lake Superior is unique, and has…
Photo L. David Mech, Public domain
Instinct
UncommonAttack 71Instinct is the inherent inclination of a living organism towards a particular complex behaviour, containing innate elements.
Rogers Park, Chicago
UncommonAttack 71Rogers Park is one of the 77 community areas of Chicago in Illinois, United States, located on the North Side of Chicago.
Photo formulanone, CC BY-SA 2.0
Levee
UncommonAttack 71A levee, is an elevated ridge alongside the banks of a river, often intended to protect against flooding of the area…
Photo Indolences, Public domain
Lily of the valley
RareAttack 70Lily-of-the-valley, also written as lily of the valley, is a woodland flowering plant with sweetly scented, pendent…
Photo Ivar Leidus, CC BY-SA 4.0
Rock
UncommonAttack 70In geology, a rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter.
Photo Yogendra Joshi, CC BY 2.0
Chukar partridge
UncommonAttack 70The chukar partridge, or simply chukar, is a Palearctic upland gamebird in the pheasant family Phasianidae.
Photo Olaf Oliviero Riemer, CC BY-SA 3.0
Revenge
UncommonAttack 70Revenge is an act against a person or group in response to a grievance, be it real or perceived.
Arctic Archipelago
UncommonAttack 70The Arctic Archipelago, also known as the Canadian Arctic Archipelago, is an archipelago lying to the north of the Canadian…
Exorcism of the Gerasene demoniac
UncommonAttack 70The exorcism of the Gerasene demoniac, frequently known as the miracle of the swine and the exorcism of Legion, is one of…
Karakoram
RareAttack 70The Karakoram is a mountain range in Asia which spans the borders of Pakistan, China and India, with the north-western…
The World
UncommonAttack 70The World Islands are an archipelago of small artificial islands constructed in the shape of a world map, located in the…
Clay
RareAttack 70Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g.
Photo Hugh Venables, CC BY-SA 2.0
Lark
UncommonAttack 70Larks are passerine birds of the family Alaudidae.
Photo T.Voekler, CC BY-SA 3.0
Kyushu
RareAttack 70Kyushu is the third-largest and most southerly of Japan's four main islands.
Photo NASA, Public domain
Monhegan, Maine
UncommonAttack 70Monhegan is a historic island plantation in the Gulf of Maine, approximately 12 nautical miles off the coast of Maine.
Natural resource
UncommonAttack 70Natural resources are resources that are drawn from nature and used with few modifications.
Tian Shan
UncommonAttack 70The Tian Shan, also known as the Tengri Tagh or Tengir-Too, is a large system of mountain ranges in Central Asia.
Photo Maryliflower, CC BY-SA 4.0
Gnathostomata
UncommonAttack 70Gnathostomata (from Ancient Greek: γνάθος 'jaw' + στόμα 'mouth') are jawed vertebrates.
Photo Chris Woodrich, CC BY-SA 4.0
Paramecium
UncommonAttack 69Paramecium ( PARR-ə-MEE-səm, -see-əm, plural "paramecia" only when used as a vernacular name) is a genus of eukaryotic…
Herding dog
UncommonAttack 69A herding dog, also known as a stock dog or working dog, is a type of dog that either has been trained in herding livestock…
Photo Martin Pot (martybugs), CC BY 3.0
Hoatzin
UncommonAttack 69The hoatzin is a species of tropical bird found in swamps, riparian forests, and mangroves of the Amazon and Orinoco Basins…
Photo Charles J. Sharp, CC BY-SA 4.0
Spider monkey
UncommonAttack 69Spider monkeys are New World monkeys belonging to the genus Ateles, part of the subfamily Atelinae, family Atelidae.
Photo Petruss, CC BY-SA 3.0
Drakensberg
UncommonAttack 69The Drakensberg is the eastern portion of the Great Escarpment, which encloses the central Southern African plateau.
Skink
UncommonAttack 69Skinks are lizards that constitute the family Scincidae, which is part of the infraorder Scincomorpha.
Photo Charles J. Sharp, CC BY-SA 4.0
North Island
UncommonAttack 69The North Island is one of the two main islands of New Zealand, separated from the larger but less populous South Island by…
Fold
UncommonAttack 69In structural geology, a fold is a stack of originally planar surfaces, such as sedimentary strata, that are bent or curved…
2020 Gjerdrum landslide
CommonAttack 69The 2020 Gjerdrum landslide was a quick clay landslide that occurred in the early hours of 30 December 2020 at Ask village…
Photo Tommy Gildseth, CC BY-SA 4.0
Common nightingale
UncommonAttack 69The common nightingale, rufous nightingale or simply nightingale, is a small passerine bird which is known for its powerful…
Photo Warrieboy, CC BY-SA 4.0
Serengeti National Park
UncommonAttack 69The Serengeti National Park is a large national park in northern Tanzania that stretches over 14,763 km2.
Trout
UncommonAttack 69Trout is a generic common name for numerous species of carnivorous freshwater fishes belonging to the genera Oncorhynchus…
Barents Sea
RareAttack 68The Barents Sea is a marginal sea of the Arctic Ocean, located off the northern coasts of Norway and Russia and divided…
Photo NormanEinstein, CC BY-SA 3.0
Yucatán Peninsula
UncommonAttack 68The Yucatán Peninsula ( YOO-kə-TAN, UK also YUU-; Spanish: Península de Yucatán [peˈninsula ðe ʝukaˈtan]) is a large…
Photo Nasa, Public domain
Slate
UncommonAttack 68Slate is a fine-grained, foliated, homogeneous, metamorphic rock derived from an original shale-type sedimentary rock…
Photo James St. John, CC BY 2.0
Margalla Hills
UncommonAttack 68The Margalla Hills is a hill range within the Margalla Hills National Park in the northwestern Punjab region in Pakistan…
Photo Ctrlpk, CC BY-SA 3.0
Daikon
UncommonAttack 68Daikon or mooli is a mild-flavored winter radish usually characterized by fast-growing leaves and a long, white, napiform…
Photo KimYunmi, CC BY-SA 4.0
Mount Kosciuszko
RareAttack 68Mount Kosciuszko is the highest mountain of mainland Australia, at 2,228 metres above sea level.
Photo Thennicke, CC BY-SA 4.0
Apiaceae
UncommonAttack 68Apiaceae, also called Umbelliferae, is a family of mostly aromatic flowering plants named after the type genus Apium, and…
Photo RoRo, CC BY-SA 3.0
Lake Ladoga
UncommonAttack 68Lake Ladoga is a freshwater lake located in the Republic of Karelia and Leningrad Oblast in northwestern Russia, in the…
Pampas
UncommonAttack 68The Pampas, also known as the Pampas Plains, are fertile low grasslands in southern South America that cover more than…
Photo Alex Pereira, Public domain
Pathway analysis
CommonAttack 68Pathway is the term from molecular biology for a curated schematic representation of a well characterized segment of the…
Photo Sarah Mubeen et al., CC BY 4.0
Cauliflower
UncommonAttack 67Cauliflower is a vegetable belonging to the species Brassica oleracea in the family Brassicaceae.
Photo Coyau, CC BY-SA 3.0
Rhea
UncommonAttack 67The rhea, also known as the ñandú is a South American ratite of the order Rheiformes.
Ural
UncommonAttack 67The Ural, also known as the Yaik , is a river flowing through Russia and Kazakhstan in the continental border between Europe…
Photo Ds02006 ( talk ), Public domain
Continental shelf
UncommonAttack 67A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water, known as a…
Metamorphosis
RareAttack 67Metamorphosis is a biological process in which an animal undergoes a conspicuous and relatively abrupt change in its body…
Drake Passage
RareAttack 67The Drake Passage or Sea of Hoces is the body of water between Cape Horn in Chile at the southern extreme of the South…
Shishapangma
UncommonAttack 67Shishapangma, or Shishasbangma or Xixiabangma, is the 14th-highest mountain in the world, at 8,027 metres above sea level.
Photo Hiroki Ogawa, CC BY 3.0
Great Australian Bight
UncommonAttack 67The Great Australian Bight is a large oceanic bight off the central and western portions of the southern coastline of…
Photo Nachoman-au, CC BY-SA 3.0
Valve
UncommonAttack 67A valve is a device or natural object that regulates, directs or controls the flow of a fluid by opening, closing, or…
Photo Paul Goyette, CC BY-SA 2.0
Jeju Island
RareAttack 66Jeju Island is South Korea's largest island, covering an area of 1,833.2 km2, which is 1.83% of the total area of the…
Great Slave Lake
UncommonAttack 66Great Slave Lake is the second-largest lake in the Northwest Territories, Canada, the deepest lake in North America at 614…
Gardenia
UncommonAttack 66Gardenia is a genus of flowering plants in the coffee family, Rubiaceae, native to the tropical and subtropical regions of…
Photo Queerbubbles, CC BY-SA 3.0
Friesian horse
UncommonAttack 66The Friesian is a horse breed originating in the province of Friesland in the northern Netherlands.
Photo Larissa Allen, CC BY-SA 3.0
Vicuña
UncommonAttack 66The vicuña or vicuna is a wild South American camelid which lives in high alpine areas of the Andes.
Photo Thomas Quine, CC BY 2.0
Phoenix Islands Protected Area
CommonAttack 66The Phoenix Islands Protected Area is located in the Republic of Kiribati, an ocean nation in the central Pacific…
Canyon
UncommonAttack 66A canyon, gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity…
Photo Workman, CC BY-SA 3.0
Iguazu Falls
RareAttack 66Iguazú Falls or Iguaçu Falls are waterfalls of the Iguazu River on the border of the Argentine province of Misiones and the…
Great Rift Valley
RareAttack 66The Great Rift Valley is a series of contiguous geographic depressions, approximately 6,500 kilometres in total length…
Photo Val Rime, CC BY-SA 4.0
Puncak Jaya
UncommonAttack 66Puncak Jaya or Carstensz Pyramid on the island of New Guinea, with an elevation of 4,884 m, is the highest mountain peak of…
Photo Enda Kaban, CC BY-SA 4.0
Aqueduct
UncommonAttack 66An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away.
Malvaceae
UncommonAttack 65Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species.
Photo Forest & Kim Starr, CC BY 3.0
Orontes River
UncommonAttack 65The Orontes or Nahr al-ʿĀṣī, or simply Asi is a 571 kilometres long river in West Asia that begins in Lebanon, flowing…
Photo Bernard Gagnon, CC BY-SA 3.0
Bering Strait
RareAttack 65The Bering Strait is a strait between the Pacific and Arctic oceans, separating the Chukchi Peninsula of the Russian Far…
Mechanization
CommonAttack 65Mechanization is the process of changing from working largely or exclusively by hand or with animals to doing that work with…
Photo Georg Agricola, Public domain
1931 China floods
UncommonAttack 65The 1931 China floods, or the 1931 Yangtze–Huai River floods, were a series of devastating floods that occurred from June to…
Kalahari Desert
UncommonAttack 65The Kalahari Desert is a large semiarid sandy savanna in Southern Africa covering 900,000 km2, including much of Botswana…
Polder
UncommonAttack 65A polder is a low-lying tract of land that forms an artificial hydrological entity, enclosed by embankments known as dikes.
Photo Takeaway, CC BY-SA 3.0
Lesser Sunda Islands
UncommonAttack 65The Lesser Sunda Islands, now known as Nusa Tenggara Islands in Indonesia, is an archipelago in the Indonesian archipelago…
Spinach
UncommonAttack 64Spinach is a leafy green flowering plant native to Central and Western Asia.
Photo Rasbak, CC BY-SA 3.0
Moraine
UncommonAttack 64A moraine is any accumulation of unconsolidated debris, sometimes referred to as glacial till, that occurs in both currently…
Photo Bijaya2043, CC BY-SA 3.0
Gravity anomaly
UncommonAttack 64The gravity anomaly at a location on the Earth's surface is the difference between the observed value of gravity and the…
Photo Jef Deckers, CC BY 4.0
New World monkey
UncommonAttack 64New World monkeys are the five families of primates that are found in the tropical regions of Mexico, Central and South…
Carnivore
UncommonAttack 64A carnivore , or meat-eater, is an animal or plant whose nutrition and energy requirements are met by consumption of animal…
Photo Mathias Appel, CC0
Lagoon
UncommonAttack 64A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as a reef, a barrier…
Photo Mwchalmers, CC BY-SA 4.0
Tigris
RareAttack 64The Tigris is the eastern of the two great rivers that define Mesopotamia, the other being the Euphrates.
Photo Duha masood, CC BY-SA 4.0
New Britain
UncommonAttack 64New Britain is the largest island in the Bismarck Archipelago, part of the Islands Region of Papua New Guinea.
Canadian Shield
RareAttack 64The Canadian Shield, also called the Laurentian Shield or the Laurentian Plateau, is a geologic shield, a large area of…
Photo Qyd, Public domain
Petrochemical
UncommonAttack 64Petrochemicals are the chemical products obtained from petroleum by refining.
Ruse de guerre
UncommonAttack 64The French ruse de guerre, sometimes literally translated as ruse of war, is a non-uniform term; generally what is…
Chanterelle
UncommonAttack 63Chanterelle is the common name of several species of agaricomycetous fungi in the genera Cantharellus, Craterellus, Gomphus…
Photo Andreas Kunze, CC BY-SA 3.0
Gravel
UncommonAttack 63Gravel is a loose aggregation of rock fragments.
Photo Stan Zurek, CC BY-SA 3.0
Tagetes
UncommonAttack 63Tagetes is a genus of 50 species of annual or perennial, mostly herbaceous plants in the family Asteraceae.
Photo Ezhuttukari, CC BY-SA 3.0
Gabrovo
CommonAttack 63Gabrovo is a city in central northern Bulgaria, the administrative centre of Gabrovo Province.It is situated at the foot of…
Photo MrPanyGoff, CC BY-SA 3.0
Schist
UncommonAttack 63Schist is a medium-grained metamorphic rock generally derived from fine-grained sedimentary rock, like shale.
Photo Michael C. Rygel, CC BY-SA 3.0
Passenger ship
UncommonAttack 63A passenger ship is a merchant ship whose primary function is to carry passengers on the sea.
Photo Tim Dyer, Public domain
Remora
UncommonAttack 63The remora, sometimes called suckerfish or sharksucker, is any of a family of ray-finned fish in the order Carangiformes.
Vinson Massif
UncommonAttack 63Vinson Massif is a large mountain massif in Antarctica that is 21 km long and 13 km wide and lies within the Sentinel Range…
Photo Christian Stangl, CC BY-SA 2.0
Learned pig
CommonAttack 63The learned pig was a pig taught to respond to commands in such a way that it appeared to be able to answer questions by…
Photo Thomas Rowlandson, Public domain
Futaleufú River
CommonAttack 63The Futaleufú River, located in northern Patagonia, is one of two rivers that cross the 5,308 kilometres Argentina–Chile…
Photo An American in Chile, CC BY-SA 4.0
Scorpaeniformes
CommonAttack 63The Scorpaeniformes are a diverse order of ray-finned fish, encompassing species such as the stonefish, lionfish, and…
Photo BS Thurner Hof, Public domain
Mesa
UncommonAttack 62A mesa is an isolated, flat-topped elevation, ridge, or hill, bounded from all sides by steep escarpments and standing…
Photo J Brew, CC BY-SA 2.0
Conglomerate
UncommonAttack 62Conglomerate is a sedimentary rock made up of rounded gravel-sized pieces of rock surrounded by finer-grained sediments.
Photo James St. John, CC BY 2.0
Jungle
UncommonAttack 62A jungle is an area of land covered with dense forest and tangled vegetation, usually in tropical climates.
Photo Dmitry Makeev, CC BY-SA 4.0
Ichthyolestes
CommonAttack 62Ichthyolestes (meaning "fish robber" from Ancient Greek ἰχθύς, meaning "fish", and λῃστής, meaning "robber") is an extinct…
Photo Nobu Tamura, CC BY 3.0
Urticating hair
UncommonAttack 62Urticating hairs or urticating bristles are one of the primary defense mechanisms used by numerous plants, almost all New…
Photo Sarefo, CC BY-SA 3.0
Chihuahuan Desert
UncommonAttack 62The Chihuahuan Desert is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States.
Carterocephalus palaemon
CommonAttack 62Carterocephalus palaemon, the chequered skipper or arctic skipper, not to be confused with the large chequered skipper, is a…
Photo Haeferl, CC BY-SA 3.0
Drainage
UncommonAttack 62Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water.
Photo Tomascastelazo, CC BY-SA 3.0
Bay of Biscay
UncommonAttack 62The Bay of Biscay, also known as the Gulf of Biscay or the Gulf of Gascony, is a gulf of the northeast Atlantic Ocean…
Dome C
CommonAttack 62Dome C, also known as dôme Circe, Dome Charlie or dôme Concordia, is located at Antarctica at an elevation of 3,233 metres…
Photo StephenHudson, Public domain
Karabakh horse
CommonAttack 61The Karabakh is a mountain-steppe racing and riding horse breed.
Photo Сверчков, Public domain
Peninsula
UncommonAttack 61A peninsula is a landform that extends from a mainland, is connected to the mainland on only one side, and is mostly…
Southern Alps
UncommonAttack 61The Southern Alps is a mountain range extending along much of the length of New Zealand's South Island, reaching its…
Lake View Terrace, Los Angeles
CommonAttack 61Lake View Terrace is a suburban neighborhood in the San Fernando Valley region of the City of Los Angeles, California.
Photo Joseph Sheppard, CC BY-SA 3.0
Silva Carbonaria
CommonAttack 61The Silva Carbonaria was the dense old-growth forest of beech and oak that formed a natural boundary during the Late Iron…
Photo Malene Thyssen, CC BY-SA 3.0
Aponogeton
CommonAttack 61The Aponogetonaceae are a family of flowering plants in the order Alismatales.
Photo JMK, CC BY-SA 3.0
Marsh
UncommonAttack 60In ecology, a marsh is a wetland that is dominated by herbaceous plants rather than by woody plants.
Syagrus
CommonAttack 60Syagrus is a genus of Arecaceae, native to South America, with one species endemic to the Lesser Antilles.
Photo Mmcknight4, Public domain
Bellis perennis
UncommonAttack 59Bellis perennis, the daisy, is a European species of the family Asteraceae, often considered the archetypal species of the…
Photo Stefan.lefnaer, CC BY-SA 4.0
Marjoram
UncommonAttack 59Marjoram is a cold-sensitive perennial herb or undershrub with sweet pine and citrus flavours.
Photo H. Zell, CC BY-SA 3.0
Mid-Atlantic Ridge
UncommonAttack 59The Mid-Atlantic Ridge is a mid-ocean ridge located along the floor of the Atlantic Ocean, and part of the longest mountain…
Photo NOAA, Public domain
Dew
UncommonAttack 59Dew is water in the form of droplets that appears on thin, exposed objects in the morning or evening due to condensation.
Photo MilkyWay's Stars, CC0
Lepontine Alps
CommonAttack 59The Lepontine Alps are a mountain range in the north-western part of the Alps.
Zealand
UncommonAttack 59Zealand is the largest and most populous island in Denmark proper at 7,031 km2.
Photo Linus Folke Jensen, CC BY-SA 4.0
Azorella polaris
CommonAttack 58Azorella polaris, commonly known as the Macquarie Island cabbage, is a species of flowering plant usually placed in the…
Photo Twiddleblatt, CC BY-SA 2.0
Spadenose shark
CommonAttack 58The spadenose shark is a species of requiem shark in the family Carcharhinidae.
Photo Müller & Henle, Public domain
Kunlun Mountains
UncommonAttack 58The Kunlun Mountains constitute one of the longest mountain chains in Asia, extending for more than 3,000 kilometres.
Riverboat
UncommonAttack 58A riverboat is a watercraft designed for inland navigation on lakes, rivers, and artificial waterways.
Photo Antti T. Nissinen, CC BY 2.0
Trans Australia Airlines Flight 538
CommonAttack 58On 10 June 1960, a Fokker Friendship passenger aircraft operated by Trans Australia Airlines was on approach at night to…
Photo Wim van Rossem for Anefo, CC0
Bay
UncommonAttack 57A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean, a lake…
Photo Richard Hoare, CC BY-SA 2.0
Acacia cyclops
CommonAttack 57Acacia cyclops, commonly known as coastal wattle, cyclops wattle, one-eyed wattle, red-eyed wattle, redwreath acacia…
Photo Nicola van Berkel, CC BY-SA 4.0
Common midwife toad
CommonAttack 57The common midwife toad is a species of midwife frog in the family Alytidae.
Photo Christian Fischer, CC BY-SA 3.0
Southeastern mixed forests
CommonAttack 57The Southeastern mixed forests are an ecoregion of the temperate broadleaf and mixed forest biome, in the lower portion of…
Lime
UncommonAttack 57A lime is the fruit of several species of citrus, most of which are hybrids within the genus Citrus.
Photo Prosthetic Head, CC BY-SA 3.0
Berchtesgaden National Park
CommonAttack 57Berchtesgaden National Park is in the south of Germany, on its border with Austria, in the municipalities of Ramsau bei…
Photo Jörg Braukmann, CC BY-SA 4.0
Charlecote Park
CommonAttack 57Charlecote Park is a grand 16th-century country house, surrounded by its own deer park, on the banks of the River Avon in…
Ban Gioc–Detian Falls
CommonAttack 56Bản Giốc – Detian Falls or Bản Giốc Falls is a collective name for two waterfalls on the Quây Sơn River that straddle the…
Photo Lê Minh Phát, CC BY 2.0
Swinburne Island
CommonAttack 56Swinburne Island is a 4-acre artificial island in Lower New York Bay, east of Staten Island in New York City.
Photo Jim.henderson, Public domain
Heracleum persicum
CommonAttack 56Heracleum persicum, commonly known as Persian hogweed or by its native name golpar, is a species of hogweed, a perennial…
Photo Ryan Hodnett, CC BY-SA 4.0
Northwest Orient Airlines Flight 2
CommonAttack 56Northwest Orient Airlines Flight 2 was a Boeing 377 Stratocruiser aircraft that was ditched into Puget Sound, just off Maury…
Ruvuma River
CommonAttack 56Ruvuma River, formerly also known as the Rovuma River, is a river in the African Great Lakes region.
Photo David Livingstone, Public domain
Taiga bean goose
CommonAttack 55The taiga bean goose is a species of goose that breeds in northern Europe and Asia.
Photo Andrey Gulivanov, CC BY 2.0
Crawford Lake Conservation Area
CommonAttack 55Crawford Lake Conservation Area is a conservation area owned and operated by Conservation Halton near the community of…
Photo Whpq, CC BY-SA 3.0
Roman cement
CommonAttack 55Roman cement is a substance developed by James Parker in the 1780s, being patented in 1796.
Photo Trevor Rickard, CC BY-SA 2.0
Aleppo soap
UncommonAttack 55Aleppo soap also known as savon d'Alep, laurel soap, Syrian soap, or ghar soap is a handmade, hard bar soap originally from…
Photo Arion54, CC BY-SA 3.0
Mineral redox buffer
CommonAttack 55In geology, a redox buffer is an assemblage of minerals or compounds that constrains oxygen fugacity as a function of…
Red-fronted parrot
CommonAttack 54The red-fronted parrot, also known as Jardine's parrot, is a medium-sized mainly green parrot distributed across wide areas…
River Anker
CommonAttack 54The River Anker flows through Nuneaton, England.
Photo Andy and Hilary, CC BY-SA 2.0
Gasterophilus intestinalis
CommonAttack 53Gasterophilus intestinalis, also known as horse bot fly, is a species of parasitic insect of the family Oestridae, and is…
Photo Notafly, CC BY-SA 3.0
Shrubland
UncommonAttack 53Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also…
Photo Shelomi Doyle, CC BY 4.0
Mount Afadja
CommonAttack 53Mount Afadja, known as Afadjato to the Ewe people of Ghana and Togo, is one of the highest mountains in Ghana.
Photo Blaq dynamite, CC BY-SA 4.0
Breed
UncommonAttack 53A breed is a specific group of breedable domestic animals having homogeneous appearance, homogeneous behavior, and/or other…
Photo Olga Ernst, CC BY-SA 4.0
Monte Zoncolan
CommonAttack 53Monte Zoncolan is a mountain in the Carnic Alps, located in the region of Friuli-Venezia Giulia, Italy, with an elevation of…
Photo Pierinut, Public domain
1946 Windsor–Tecumseh tornado
CommonAttack 53On June 17, 1946, a deadly and powerful tornado moved through the city of Windsor, Ontario, killing 17 people.
Hood Island giant tortoise
CommonAttack 52The Hood Island giant tortoise, also known commonly as the Española giant tortoise, is a subspecies of Galápagos tortoise…
Photo E bailey, CC BY-SA 4.0
Salt's dik-dik
CommonAttack 52Salt's dik-dik is a small antelope found in semidesert, bushland, and thickets in the Horn of Africa, but marginally also in…
Harpymimus
CommonAttack 52Harpymimus is a genus of basal ornithomimosaurian theropod dinosaur from the Early Cretaceous Period of what is now Mongolia.
Île-de-France tramway Line 14
CommonAttack 52Île-de-France tramway Line 14 is a suburban tram-train line in Seine-et-Marne, east of Paris.
Photo Idris2000, CC BY-SA 4.0
Striped owl
CommonAttack 52The striped owl is a medium-sized owl with large ear tufts and a brownish-white facial disk rimmed with black.
Photo DavidStarIsrael7, CC BY-SA 4.0
Formica obscuripes
CommonAttack 52Formica obscuripes, the western thatching ant, is a species of ant in the family Formicidae.
Photo April Nobile, CC BY 4.0
Wallace's flying frog
CommonAttack 52Wallace's flying frog, also known as the gliding frog or the Abah River flying frog, is a moss frog found at least from the…
Photo Rushenb, CC BY-SA 4.0
Bash Bish Falls
CommonAttack 52Bash Bish Falls, a waterfall in Bash Bish Falls State Park in the Taconic Mountains of southwestern Massachusetts, is the…
Photo Tom Walsh, CC BY-SA 3.0
Eagle's minimal essential medium
CommonAttack 52Minimal essential medium is a synthetic cell culture medium developed by Harry Eagle first published in 1959 in Science that…
Photo Lilly_M, CC BY-SA 3.0
The KEE to Bala
CommonAttack 52The KEE to Bala, originally called "Dunn's Pavilion," is a concert venue and bar located on Lake Muskoka, in the town of…
Photo WookieInHeat, CC BY-SA 3.0
Chrysocolla
UncommonAttack 51Chrysocolla is a hydrous copper phyllosilicate mineral and mineraloid with the formula Cu2 – xAlx4⋅nH2O or2H2Si2O54⋅nH2O).
Photo Robert M. Lavinsky, CC BY-SA 3.0
Pterocarpus macrocarpus
CommonAttack 51Pterocarpus macrocarpus, commonly known as Burma padauk or Burmese padauk, is a species of tree in the family Fabaceae.
Photo James J. Ludemann, CC BY 3.0
Central Suriname Nature Reserve
CommonAttack 51The Central Suriname Nature Reserve (Dutch: Centraal Suriname Natuurreservaat) is a conservation unit in Suriname.
Photo David Evers, CC BY 2.0
Tasman Lake
CommonAttack 51Tasman Lake is a proglacial lake formed by the recent retreat of the Tasman Glacier in New Zealand's South Island.
Photo Avenue, CC BY-SA 3.0
Juniperus monosperma
CommonAttack 50Juniperus monosperma, the New Mexico juniper or one-seed juniper, is a species of juniper native to western North America…
Cuanza River
CommonAttack 50The Cuanza River, also known as the Kwanza, the Quanza, or the Coanza, is the longest river in Angola.
Photo jlrsousa, CC BY-SA 2.0
Culebra Peak
CommonAttack 50Culebra Peak is the highest summit of the Culebra Range of the Sangre de Cristo Mountains of the Rocky Mountains of North…
Praqpa Kangri
CommonAttack 50Praqpa Kangri is a mountain in Pakistan's Karakoram range in the territory of Gilgit-Baltistan, Pakistan.
Photo Vittorio Sella, Public domain
Dzharylhach
CommonAttack 50Dzharylhach is a sand bank in Skadovsk Raion, Kherson Oblast near Crimea in Ukraine.
Photo Vadym Yunyk, CC BY-SA 4.0
Entomophthora muscae
CommonAttack 50Entomophthora muscae is a species of pathogenic fungus in the order Entomophthorales which causes a fatal disease in flies.
Photo Hans Hillewaert, CC BY-SA 4.0
Lantau Peak
CommonAttack 50Lantau Peak, or Fung Wong Shan, is a mountain in Lantau South Country Park, Lantau Island, Hong Kong.
Photo Ngchikit, Public domain
Whitetail Ski Resort
CommonAttack 50Whitetail Mountain Resort is a four-season resort located on Two Top Mountain, a mountain in the Bear Pond Mountains of…
Photo G. Edward Johnson, CC BY 4.0
Mitsukejima
CommonAttack 50Mitsukejima is an uninhabited island in Takadate-cho, Suzu, Ishikawa, Japan.
Datnioides microlepis
CommonAttack 49Datnioides microlepis, also known as the Indonesian tiger perch, Indo datnoid, Indonesian tigerfish, or finescale tigerfish…
Photo Mattia Nocciola, CC BY-SA 4.0
Profitis Ilias
CommonAttack 49Mount Profitis Ilias is a 798-metre-high mountain on the Greek island of Rhodes.
Photo Zamonin, CC BY-SA 3.0
Praecambridium
CommonAttack 49Praecambridium sigillum is an extinct organism that superficially resembles a segmented trilobite-like arthropod, and it was…
Photo Apokryltaros, CC BY 4.0
Arjuna
UncommonAttack 49Arjuna was an Asian elephant who, from 2012 to 2019, was the lead elephant and the carrier of the Golden Howdah at the…
Photo Cciesri, CC BY-SA 4.0
Cupressus dupreziana
CommonAttack 49Cupressus dupreziana, the Saharan cypress, or tarout, is a very rare coniferous tree in the cypress family, Cupressaceae…
Photo Gruban at Flickr, CC BY-SA 2.0
High Rocks
CommonAttack 48High Rocks is a 3.2-hectare geological Site of Special Scientific Interest west of Tunbridge Wells in East Sussex and Kent.
Treeswift
CommonAttack 48Treeswifts, or crested swifts, are a family, the Hemiprocnidae, of aerial birds, closely related to the true swifts.
Photo Kousik Nandy, CC BY-SA 3.0
Eubrachythoraci
CommonAttack 48Eubrachythoraci is an extinct clade of arthrodire placoderms within the suborder Brachythoraci, armored fish most diverse…
Ganesh Himal
CommonAttack 48Ganesh Himāl is a sub-range of the Himalayas located mostly in north-central Nepal, but some peaks lie on the border with…
Photo Solundir, CC BY-SA 3.0
Riccardoella limacum
CommonAttack 48Riccardoella limacum or the white snail mite is a member of the Acari taxon which is parasitic primarily on snails.
Tosya
CommonAttack 48Tosya, previously called Theodosia or Doceia under the Byzantine Empire, is a town in Kastamonu Province in the Black Sea…
Cook Islands mythology
CommonAttack 48Cook Islands mythology comprises historical myths, legends, and folklore passed down by the ancient Cook Islanders over many…
Photo dustinpsmith, CC BY 2.0
Thiais
CommonAttack 47Thiais is a commune in the southern suburbs of Paris, France.
Photo JC Allin, CC BY-SA 3.0
Cola acuminata
CommonAttack 47Cola acuminata is a species in the genus Cola, of the family Malvaceae, native to tropical Africa.
Agalychnis
CommonAttack 47Agalychnis is a genus of tree frogs native to forests in Mexico, Central America and northwestern South America.
Photo Christian R. Linder, CC BY-SA 3.0
Asplenium bulbiferum
CommonAttack 47Asplenium bulbiferum, known as mother spleenwort, is a species of fern endemic to New Zealand.
Ladoga ringed seal
CommonAttack 47The Ladoga ringed seal is a freshwater subspecies of the ringed seal found entirely in Lake Ladoga in northwestern Russia.
Trúc Bạch Lake
CommonAttack 47Trúc Bạch Lake is one of the many lakes in the city of Hanoi, the capital of Vietnam.
Photo Rungbachduong, CC BY-SA 3.0
Republic Plaza
CommonAttack 46Republic Plaza is a skyscraper in Denver, Colorado.
Photo Xnatedawgx, CC BY-SA 4.0
Macleaya cordata
CommonAttack 46Macleaya cordata, the five-seeded plume-poppy, is a species of flowering plant in the poppy family Papaveraceae, which is…
Photo Sphl, CC BY-SA 3.0
Ipf
CommonAttack 46The Ipf is a mostly treeless mountain (668 metres high), near Bopfingen, Ostalbkreis, Baden-Württemberg, Germany, with a…
Photo Kreuzschnabel, CC BY-SA 3.0
Dragonhunter
CommonAttack 46The dragonhunter is a clubtail dragonfly of the eastern United States and southeastern Canada.
Photo Raphael Carter, CC BY-SA 3.0
Twelve Apostles Marine National Park
CommonAttack 46The Twelve Apostles Marine National Park is a protected marine national park located on the south-west coast of Victoria…
Photo Richard Mikalsen, CC BY-SA 3.0
Les Menuires
CommonAttack 46Les Menuires is a ski resort in the Belleville valley of Les Trois Vallées between Saint-Martin-de-Belleville and Val…
Clouds Rest
CommonAttack 45Clouds Rest is a mountain in Yosemite National Park, located east-northeast of Yosemite Village, California.
Cheilomenes sexmaculata
CommonAttack 45Cheilomenes sexmaculata is a species of ladybird.
Photo Renjusplace, CC BY-SA 3.0
Neoraimondia
CommonAttack 45Neoraimondia is a genus of medium to large cacti from Peru.
Photo Self, Public domain
Cissampelos pareira
CommonAttack 45Cissampelos pareira is a species of flowering plant in the family Menispermaceae.
Photo Krish Dulal, CC BY-SA 3.0
Central Black Forest
CommonAttack 45The Central Black Forest, also called the Middle Black Forest, is a natural or cultural division of the Black Forest in…
Photo Adrian Thomale, CC BY-SA 3.0
Jôf di Montasio
CommonAttack 44The Jôf di Montasio is a mountain located in the Province of Udine, in the Friuli-Venezia Giulia region of northeastern…
Photo kallerna, CC BY-SA 4.0
"Colostethus" ruthveni
CommonAttack 44"Colostethus" ruthveni is a species of frog with unresolved relationships within its family Dendrobatidae; it is found only…
Turan Depression
CommonAttack 43The Turan Depression, Turan Lowland or Turanian Basin is a low-lying desert basin region stretching from southern…
Mount Pisgah
CommonAttack 42Mount Pisgah is a mountain in Westmore, Vermont.
Photo Lostdrewid, CC BY-SA 3.0
Yardenit
CommonAttack 42Yardenit, also known as the Yardenit Baptismal Site, is a baptism site located along the Jordan River in the Galilee region…
Photo Star Mississippi, CC BY-SA 3.0
Geocarpy
CommonAttack 41Geocarpy is "an extremely rare means of plant reproduction", in which plants produce diaspores within the soil.
Photo Alex Popovkin, CC BY 2.0
Nautilus macromphalus
CommonAttack 41Nautilus macromphalus, the bellybutton nautilus, is a species of nautilus native to the waters off New Caledonia and…
Photo Pujolle, CC BY-SA 3.0
Protobranchia
CommonAttack 41Protobranchia is a subclass of bivalve molluscs.
Photo Tom Meijer, CC BY-SA 3.0
Lim
CommonAttack 41The Lim bay and valley is a peculiar geographic feature found near Rovinj and Vrsar on the western coast of Istria, south of…
Photo Aconcagua ( talk ), CC BY-SA 3.0
Marchalina hellenica
CommonAttack 41Marchalina hellenica is a scale insect that lives in the eastern Mediterranean region, mainly in Greece and Turkey.
Ba Vì mountain range
CommonAttack 40The Ba Vì mountain range is a soil-limestone mountain range in Vietnam.
Photo Nguyễn Mạnh Cường, Public domain
Mount Kumotori
CommonAttack 39Mount Kumotori stands at the boundary of Tokyo, Saitama, and Yamanashi Prefectures on the island of Honshū, Japan.
Photo Σ64, CC BY-SA 3.0
Grey crow
CommonAttack 39The gray crow, formerly known as the bare-faced crow, is about the same size as the Eurasian carrion crow but has somewhat…
Photo Cheongweei Gan, CC BY 4.0
Qualibou
CommonAttack 38Qualibou, also known as the Soufrière Volcanic Center, is a 3.5 × 5 km-wide caldera on the island of Saint Lucia that formed…
Mandevilla boliviensis
CommonAttack 38Mandevilla boliviensis is a species of flowering plant in the dogbane family Apocynaceae, native to a region ranging from…
Photo KENPEI, CC BY-SA 3.0
Populus adenopoda
CommonAttack 38Populus adenopoda, known commonly as the Chinese aspen, is a species of poplar found in the subtropical regions of China.
Myrmeleon formicarius
CommonAttack 38Myrmeleon formicarius is a species of antlion native to Belgium and other parts of Europe.
Qionglai Mountains
CommonAttack 38Qionglai Mountains is a mountain range in the Sichuan Province of China.
Photo Raqueli, Public domain
White-collared pigeon
CommonAttack 37The white-collared pigeon is a species of bird in the family Columbidae.
Echinops bannaticus
CommonAttack 35Echinops bannaticus, known as the blue globe-thistle, is a species of flowering plant in the family Asteraceae, native to…
Photo JackyM59, CC BY-SA 4.0
Old World flying squirrel
CommonAttack 34Commonly referred to as the Old World flying squirrels, the genus Pteromys is distributed across temperate Eurasia, the…
Attaleinae
CommonAttack 33Attaleinae is a subtribe of plants in the family Arecaceae.
Photo Amuzujoe, CC BY-SA 4.0
Fall Creek Falls
CommonAttack 33Fall Creek Falls is a 256-foot tall sheer-drop waterfall located in Fall Creek Falls State Park near Spencer, Tennessee.
Photo Jsfouche, CC BY-SA 3.0
Philodendron martianum
CommonAttack 30Philodendron martianum, commonly known as pacová, is a species of plant in the family Araceae.
Photo Chhe ( talk ), Public domain
African house snake
CommonAttack 30The African house snake is a species of snake of the family Lamprophiidae.
Photo Ltshears, Public domain
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