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 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 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 hippopotamus (Hippopotamus amphibius) is a large semiaquatic mammal native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the Pygmy hippopotamus. Its name comes from the ancient Greek...
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 Saltwater crocodile (Crocodylus porosus) is the largest living reptile and crocodilian known. It was hunted for its skin throughout its range up to the 1970s and is threatened by illegal killing and habitat loss. It is regarded as dangerous to...
The osprey (Pandion haliaetus) is a diurnal, fish-eating bird of prey with a cosmopolitan range. The osprey tolerates a wide variety of habitats, nesting in any location near a body of water providing an adequate food supply. It is found on all...
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 giant squid (Architeuthis dux ) is a species of deep-ocean dwelling squid in the family Architeuthidae. It can grow to a tremendous size, offering an example of deep-sea gigantism: recent estimates put the maximum size at around 12–13 m...
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 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 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 American alligator (Alligator mississippiensis) is a large crocodilian reptile native to the Southeastern United States. It is one of the two extant species in the genus Alligator, and is probably the largest species within its family...
The Emperor penguin (Aptenodytes forsteri) is the tallest and heaviest of all living penguin species and is endemic to Antarctica. Like all penguins, it is flightless, with a streamlined body, and wings stiffened and flattened into flippers for a...
The colossal squid (Mesonychoteuthis hamiltoni ) is part of the family Cranchiidae. It is sometimes called the Antarctic squid or giant cranch squid and is believed to be the largest squid species in terms of mass. It is the only recognized member...
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 Nile crocodile (Crocodylus niloticus) is a large crocodilian that lives in freshwater habitats in Africa. There it is present in 26 countries. The Nile crocodile is one of the most dangerous species of crocodile and is responsible for hundreds...
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 American crocodile (Crocodylus acutus) is the most widespread of the four extant species of crocodiles from the Americas. It is also one of the largest crocodile species. Males can reach lengths of 6.1 m (20 ft 0 in), weighing up to 907 kg...
Vaquitas (Phocoena sinus) are record-holders among all cetaceans. Thus, these animals are the smallest cetaceans, meanwhile being the smallest porpoises; they have the smallest range; and finally, vaquitas are the most critically endangered cetacean...
The Great blue heron (Ardea herodias) is a tall and statuesque bird when wading in the water seeking its prey, and it is graceful and swift when flying with its slow deep wing beats. It is one of the most majestic wild birds in North America. This...
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...
The Blue-footed booby (Sula nebouxii) is a marine bird native to subtropical and tropical regions of the eastern Pacific Ocean. It is one of six species of the genus Sula - known as boobies. It is easily recognizable by its distinctive bright blue...
The Leopard seal (Hydrurga leptonyx) is the second largest species of seal in the Antarctic (after the Southern elephant seal). Its only natural predator is the orca. It is the only species in the genus Hydrurga. Its closest relatives are the Ross...
The False killer whale (Pseudorca crassidens) is a species of oceanic dolphin that is the only extant representative of the genus Pseudorca. It is found in oceans worldwide but mainly frequents tropical regions. The name "false killer whale" comes...
The North American river otter (Lontra canadensis) is a semiaquatic mammal that lives along its waterways and coasts. It is the only river otter that is found north of Mexico. These animals live in burrows and like most predators, prey upon the most...
The killdeer (Charadrius vociferus) is a large plover found in the Americas. It was described and given its current scientific name in 1758 by Carl Linnaeus in the 10th edition of his Systema Naturae. The common name of this species comes from its...
The Bowhead whale (Balaena mysticetus) is a species of baleen whale and the only living representative of the genus Balaena. They are the only baleen whale endemic to the Arctic and subarctic waters and are named after their characteristic massive...
The giant Pacific octopus (Enteroctopus dofleini, formerly also Octopus apollyon ), also known as the North Pacific giant octopus, is a large marine cephalopod belonging to the genus Enteroctopus. Its spatial distribution includes the coastal North...
The common octopus (Octopus vulgaris ) is a mollusc belonging to the class Cephalopoda. Octopus vulgaris is one of the most studied of all octopus species, and also one of the most intelligent. It is cosmopolitan, that is, a global species, which...
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 Mute swan (Cygnus olor) is known as an integral feature of urban parks as well as most of the waterways in our regions. But originally this beautiful white bird was a wild animal, not always with compatible behavior and habits for life in city...
The White-tailed eagle (Haliaeetus albicilla ) is one of the largest living birds of prey. It is sometimes considered the fourth largest eagle in the world and is on average the fourth heaviest eagle in the world. White-tailed eagles are considered...
The Black swan (Cygnus atratus) is a large unmistakeble waterbird, a species of swan. It is one of only three swan species that inhabit the southern hemisphere. The Black swan was introduced to various countries as an ornamental bird in the 1800s...
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 Atlantic puffin (Fratercula arctica) is a colorful seabird that belongs to the auk family. It is the only puffin native to the Atlantic Ocean. Although it has a large population and a wide range, the species has declined rapidly, at least in...
The Little blue penguin (Eudyptula minor) is a species of penguin that is found in New Zealand. They are also commonly known as Blue penguins owing to their slate-blue plumage. They are also known by their Māori name kororā.
The Adélie penguin (Pygoscelis adeliae) is a species of penguin common along the entire coast of the Antarctic continent. This is the only place where it is found. It is the most widespread penguin species, and, along with the Emperor penguin, is...
The Gray whale (Eschrichtius robustus) is a baleen whale that migrates between feeding and breeding grounds yearly. The common name of this whale comes from the gray patches and white mottling on its dark skin. Gray whales were once called devil...
