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 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 dugong (Dugong dugon) is one of four living species of the order Sirenia, which also includes three species of manatees. It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow...
The leatherback sea turtle (Dermochelys coriacea ), sometimes called the lute turtle or leathery turtle or simply the luth, is the largest of all living turtles and the heaviest non-crocodilian reptile, reaching lengths of up to 1.8 metres and...
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 Snowy owl (Bubo scandiacus) is a large, white owl of the true owl family. It has a number of unique adaptations to its habitat and lifestyle, which are quite distinct from other extant owls. Most owls sleep during the day and hunt at night, but...
The Green sea turtle (Chelonia mydas) is a species of large sea turtle of the family Cheloniidae. The common name of this species refers to the usually green fat found beneath its carapace, not to the color of its carapace, which is olive to black....
The loggerhead sea turtle (Caretta caretta ), is a species of oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae. The average loggerhead measures around 90 cm (35 in) in carapace length when...
Described as "The bird which made the breeze to blow" the wingspan of a Wandering albatross (Diomedea exulans) is the longest of any bird. It lives up to its name when it takes fishing trips that last 10-20 days and can cover 10,000 km while using...
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...
Steller's sea eagle (Haliaeetus pelagicus) is a large diurnal bird of prey in the family Accipitridae. It was described first by Peter Simon Pallas in 1811. Typically, it is the heaviest eagle in the world.
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 Hawksbill sea turtle (Eretmochelys imbricata) is a critically endangered sea turtle belonging to the family Cheloniidae. It is the only extant species in the genus Eretmochelys. The Hawksbill sea turtle has a global distribution; it lives part...
The olive ridley sea turtle (Lepidochelys olivacea ), also known commonly as the Pacific ridley sea turtle, is a species of turtle in the family Cheloniidae. The species is the second-smallest and most abundant of all sea turtles found in the world....
The Red-crowned crane (Grus japonensis) is a large graceful East Asian crane. It is among the rarest cranes in the world. In some parts of its range, this bird is known as a symbol of luck, longevity, and fidelity.
The giant clams are the members of the clam genus Tridacna that are the largest living bivalve mollusks. There are actually several species of "giant clams" in the genus Tridacna, which are often misidentified for Tridacna gigas, the most commonly...
The ocean sunfish or common mola (Mola mola) is one of the largest bony fish in the world. It was misidentified as the heaviest bony fish, which was actually a different species, Mola alexandrini. Adults typically weigh between 247 and 1,000 kg (545...
The Sei whale (Balaenoptera borealis) is a baleen whale, the third-largest rorqual after the Blue whale and the Fin whale. It inhabits most oceans and adjoining seas and prefers deep offshore waters. The whale's name comes from the Norwegian word...
The Siberian crane (Leucogeranus leucogeranus) is the world's third most endangered species of crane. Amongst cranes, its serrated bill makes it unique and enables it to easily feed on underground roots and slippery prey items. Among the cranes,...
The Great bustard (Otis tarda) is a bird in the bustard family, the only member of the genus Otis. It is one of the heaviest birds alive today that can fly. Great bustards are found in Europe and Portugal and Spain now have about 60% of the world's...
The Eastern imperial eagle (Aquila heliaca) is a large graceful bird of prey that breeds in Eurasia. Like all eagles, the Eastern imperial eagle is a member of the family Accipitridae. Furthermore, its well-feathered legs mark it as a member of the...
The chambered nautilus (Nautilus pompilius ), also called the pearly nautilus, is the best-known species of nautilus. The shell, when cut away, reveals a lining of lustrous nacre and displays a nearly perfect equiangular spiral, although it is not a...
The great white shark (Carcharodon carcharias), also known as the white shark, white pointer, or simply great white, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans. It is the only known...
The Chinese softshell turtle (Pelodiscus sinensis ) is a species of softshell turtle that is native to China (Inner Mongolia to Guangxi, including Hong Kong) and Taiwan, with records of escapees—some of which have established introduced...
The North Pacific right whale (Eubalaena japonica ) is a very large, thickset baleen whale species that is extremely rare and endangered. The Northeast Pacific population, which summers in the southeastern Bering Sea and Gulf of Alaska, may have no...
The Swan goose (Anser cygnoides) is a large goose with a natural breeding range in inland Mongolia, northernmost China, and the Russian Far East. While uncommon in the wild, this species has been domesticated. Introduced and feral populations of its...
The Iriomote cat (Prionailurus bengalensis iriomotensis) is a subspecies of the Leopard cat that lives exclusively on the Japanese island of Iriomote. It is viewed by many biologists as a "living fossil," and is not much changed from its primitive...
The Himalayan black bear (Ursus thibetanus laniger ) is a subspecies of the Asian black bear found in the Himalayas of India, Bhutan, Nepal, China, and Pakistan.
The long-tailed duck (Clangula hyemalis ), formerly known as oldsquaw, is a medium-sized sea duck that breeds in the tundra and taiga regions of the arctic and winters along the northern coastlines of the Atlantic and Pacific Oceans. It is the only...
The northern fur seal (Callorhinus ursinus ) is an eared seal found along the north Pacific Ocean, the Bering Sea, and the Sea of Okhotsk. It is the largest member of the fur seal subfamily (Arctocephalinae) and the only living species in the genus...
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of 18.8 m (61.7 ft). The whale shark holds many records for size in the animal...
The common pochard (; Aythya ferina ) is a medium-sized diving duck. The scientific name is derived from Greek aithuia an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin ferina, "wild game", from ferus, "wild".
The black-legged kittiwake (Rissa tridactyla ) is a seabird species in the gull family Laridae.This species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae as Larus tridactylus. The English name is derived...
The Amami rabbit (Pentalagus furnessi ; Amami: ), or Amami no-kuro-usagi (アマミノクロウサギ 奄美野黒兔, lit. "Amami wild black rabbit"), also known as the Ryukyu rabbit is a dark-furred rabbit which is only found in Amami Ōshima and Toku-no-Shima, two small...
The coconut crab (Birgus latro) is a terrestrial species of giant hermit crab, and is also known as the robber crab or palm thief. It is the largest terrestrial arthropod known, with a weight of up to 4.1 kg (9 lb). The distance from the tip of one...
The horned grebe or Slavonian grebe (Podiceps auritus ) is a relatively small waterbird in the family Podicipedidae. There are two known subspecies: P. a. auritus, which breeds in the Palearctic, and P. a. cornutus, which breeds in North America....
The spoon-billed sandpiper (Calidris pygmaea ) is a small wader which breeds on the coasts of the Bering Sea and winters in Southeast Asia. This species is highly threatened, and it is said that since the 1970s the breeding population has decreased...
The short-tailed albatross or Steller's albatross (Phoebastria albatrus ) is a large rare seabird from the North Pacific. Although related to the other North Pacific albatrosses, it also exhibits behavioural and morphological links to the...
The Beauty rat snake (Orthriophis taeniura, once of the Elaphe complex) is a species of non-venomous snake in the family Colubridae. It is a long, thin, semi-arboreal species of snake with several recognized subspecies. This constrictor feeds on...
The basking shark (Cetorhinus maximus) is the second-largest living shark and fish, after the whale shark. It is one of three plankton-eating shark species, along with the whale shark and megamouth shark. Typically, basking sharks reach 7.9 m (26...
The white-naped crane (Antigone vipio ) is a bird of the crane family. It is a large bird, 112–125 cm (44–49 in) long, about 130 cm (4.3 ft) tall, and weighing about 5.6 kg (12 lb), with pinkish legs, a grey-and-white-striped neck, and a red face...
Steller's eider (Polysticta stelleri ) is a migrating Arctic diving duck that breeds along the coastlines of eastern Russia and Alaska. It is the rarest, smallest, and fastest flying of the eider species. Amongst the Inupiat, Steller's eider is...
