The tiger (Panthera tigris) is the largest living cat species and a member of the genus Panthera. It is among the most recognizable and popular of the world's charismatic megafauna. It featured prominently in the ancient mythology and folklore of...
The Blue whale (Balaenoptera musculus) is a marine mammal and a baleen whale. It is the largest animal known to have ever existed. The Blue whale was once abundant in nearly all the Earth's oceans until the end of the 19th century. It was hunted...
The Killer whale (Orcinus orca) is a toothed whale belonging to the oceanic dolphin family. It is the largest member of this family. The sophisticated hunting techniques and vocal behaviors of Killer whales have been described as manifestations of...
The wolf (Canis lupus), also known as the Gray wolf or Grey wolf, is a large canine native to Eurasia and North America. More than thirty subspecies of Canis lupus have been recognized, and gray wolves, as popularly understood, comprise wild...
The Brown bear (Ursus arctos) is a large bear species found across Eurasia and North America. In North America, the populations of Brown bears are called Grizzly bears, while the subspecies that inhabits the Kodiak Islands of Alaska is known as the...
The Polar bear (Ursus maritimus) is a hypercarnivorous bear found within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the largest extant bear species, as well as the largest extant land...
The moose (in North America) or elk (in Eurasia) (Alces alces) is a member of the New World deer subfamily. It is the largest and heaviest extant species in the deer family. Hunting and other human activities have caused a reduction in the size of...
The narwhal, also known as a narwhale (Monodon monoceros), is a medium-sized toothed whale with a large "tusk" from a protruding canine tooth. It is one of two living species of whale in the family Monodontidae, along with the Beluga whale. Narwhals...
The leopard (Panthera pardus) is one of the five extant species in the genus Panthera, a member of the cat family, Felidae. The leopard is distinguished by its well-camouflaged fur, opportunistic hunting behavior, broad diet, strength, and its...
The wolverine (Gulo gulo) is the largest land-dwelling species of the family Mustelidae. It is a muscular carnivore and a solitary animal. The wolverine has a reputation for ferocity and strength out of proportion to its size, with the documented...
The Sperm whale or cachalot (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator. It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the...
The Snow leopard (Panthera uncia) is a felid native to the mountain ranges of Central and South Asia. The Snow leopard is adapted to living in a cold, mountainous environment and is capable of killing most animals in its range.
The Wild boar (Sus scrofa) is a suid native to much of Eurasia and North Africa. The species is now one of the widest-ranging mammals in the world, as well as the most widespread suiform. It has been assessed as the least concern on the IUCN Red...
The Red fox (Vulpes vulpes) is the largest of the true foxes and one of the most widely distributed members of the order Carnivora, being present across the entire Northern Hemisphere. Its range has increased alongside human expansion, having been...
The Common raccoon dog (Nyctereutes procyonoides) is a canid indigenous to mainland East Asia and northern Vietnam. Despite its name, its closest relatives are the true foxes, and not the American raccoons. Among the Canidae, the Raccoon dog shares...
The Beluga whale (Delphinapterus leucas) is a cetacean adapted to life in the Arctic, with anatomical and physiological characteristics that differentiate it from other cetaceans. Amongst these are its all-white color and the absence of a dorsal...
The reindeer (Rangifer tarandus), also known as the caribou in North America, is a species of deer with circumpolar distribution. Reindeer occur in both migratory and sedentary populations, and their herd sizes vary greatly in different regions....
The walrus (Odobenus rosmarus) is a large flippered marine mammal with a discontinuous distribution about the North Pole in the Arctic Ocean and subarctic seas of the Northern Hemisphere. The walrus is the only living species in the family...
The elk (Cervus canadensis) is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range. The common name elk, used in North America, creates confusion because the larger Alces alces,...
The Humpback whale (Megaptera novaeangliae) is a species of baleen whale. It is a rorqual; a member of the family Balaenopteridae. The Humpback whale is known for breaching and other distinctive surface behaviors, making it popular with whale...
The Arctic fox (Vulpes lagopus) is a small fox native to the Arctic regions of the Northern Hemisphere and common throughout the Arctic tundra biome. It is well adapted to living in cold environments and is best known for its thick, warm fur that is...
The ermine (Mustela erminea) is a mustelid native to Eurasia and the northern portions of North America. Introduced in the late 19th century into New Zealand to control rabbits, the ermine has had a devastating effect on native bird populations. It...
The Sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. They are the heaviest members of the weasel family, but among the smallest marine mammals. Unlike most marine mammals, the sea...
The sable (Martes zibellina) is a species of marten, a small omnivorous mammal primarily living in the forest environments of Russia. The name sable appears to be of Slavic origin and entered most Western European languages via the early medieval...
One of the most abundant and widespread mammals around the globe, the House mouse (Mus musculus) is found in almost any part of the world (except Antarctica) due to human travel. This rodent originated in Iran, Afghanistan, Pakistan, and northern...
The Brown rat (Rattus norvegicus) is a widespread species of common rat. One of the largest muroids, it weighs between 140 and 500 g (5 and 17+3⁄4 oz). Thought to have originated in northern China and neighboring areas, this rodent has now spread to...
The Pallas's cat (Otocolobus manul) is a small wild cat well camouflaged and adapted to the cold continental climate in its native range. It has rounded rather than vertical slit pupils, a unique feature among small cats. It inhabits rocky montane...
The Domestic yak (Bos grunniens) is a species of long-haired domesticated cattle that is descended from the wild yak. The yak may have diverged from cattle at any point between one and five million years ago, and there is some suggestion that it may...
The Amur leopard (Panthera pardus orientalis) is a leopard subspecies native to Russia and China. It is listed as Critically Endangered on the IUCN Red List and is considered one of the rarest cats on Earth.
The Eurasian lynx (Lynx lynx) is a medium-sized wild cat. It is Europe’s third-largest predator after Brown bears and wolves and is the biggest of the species of lynx. The Eurasian lynx lives in forests and despite its wide distribution, it is...
The European pine marten (Martes martes) is native to Northern Europe and belongs to the mustelid family, other members of which are mink, otter, badger, weasel, and wolverine. It is an agile animal, adapted to living in the forests. It is known to...
The wisent (Bison bonasus) or the European bison is a European species of bison. These animals were hunted to extinction in the wild in the early 20th century. Some of them were kept alive in captivity, and have since been reintroduced into several...
The Red squirrel (Sciurus vulgaris) is a species of tree squirrel in the genus Sciurus common throughout Europe and Asia. It lives in trees and its long tail helps the squirrel to balance and steer when jumping from tree to tree and running along...
The Asian black bear (Ursus thibetanus) is a medium-sized bear species native to Asia. It is unique among bears in that it is largely adapted to an arboreal lifestyle. It is listed as vulnerable on the IUCN Red List, and is threatened by...
The chamois (Rupicapra rupicapra) is a species of goat-antelope native to mountains in Europe. It has also been introduced to the South Island of New Zealand. Some subspecies of chamois are strictly protected in the EU under the European Habitats...
The Roe deer (Capreolus capreolus) is a small species of deer. The male of the species is sometimes referred to as a roebuck. In the English language, this deer was originally simply called a 'roe', but over time the word 'roe' has become a...
The Saiga antelope (Saiga tatarica) is a critically endangered antelope that during antiquity inhabited a vast area of the Eurasian steppe. During the Pleistocene, they also occurred in Beringian North America and the British Isles. It is extirpated...
The Mongolian gerbil (Meriones unguiculatus) is a small burrowing rodent often used in science and kept as a small house pet. Their use in science dates back to the latter half of the 19th century but these small animals became popular as pets in...
The European badger (Meles meles) is a mustelid native to almost all of Europe. It has a wide range and a large stable population size and is thought to be increasing in some regions. In Europe, where no other badger species commonly occurs, it is...
The Least weasel (Mustela nivalis) lives deep in the Northeast Asian deciduous forest. It hunts day and night, aided by its sharp nails and long slender body. It is the world’s smallest carnivore. According to Blackfoot legend, this species is the...
The Fin whale (Balaenoptera physalus) is a cetacean belonging to the parvorder of baleen whales. It is the second-longest species of cetacean on Earth after the Blue whale. American naturalist Roy Chapman Andrews called the fin whale "the greyhound...
The Leopard cat (Prionailurus bengalensis) is a small wild cat native to continental South, Southeast, and East Asia. Leopard cat subspecies differ widely in fur color, tail length, skull shape, and size of carnassials. Archaeological evidence...
