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 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 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 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 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...
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 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 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 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 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 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 European polecat (Mustela putorius) is a species of mustelid native to western Eurasia and North Africa. It originated in Western Europe during the Middle Pleistocene, with its closest living relatives being the Steppe polecat, the Black-footed...
The Iberian lynx (Lynx pardinus) is the rarest of the lynx species. It is the most threatened cat species, currently on the verge of extinction. By the turn of the 21st century, the Iberian lynx was on the verge of extinction but due to conservation...
The European rabbit (Oryctolagus cuniculus) is a small mammal native to southwestern Europe and northwest Africa. It is known as an invasive species because it has been introduced to countries on all continents with the exception of Antarctica, and...
The Harbor seal (Phoca vitulina) is a true seal that lives along temperate and Arctic marine coastlines of the Northern Hemisphere. It is the most widely distributed species of pinniped (walruses, eared seals, and true seals). Harbor seals like to...
The Pyrenean ibex (Capra pyrenaica pyrenaica ), Aragonese and Spanish common name bucardo, Basque common name bukardo, Catalan common name herc and French common name bouquetin, was one of the four subspecies of the Iberian ibex or Iberian wild...
The Cuvier's beaked whale (Ziphius cavirostris) is the most widely distributed of all beaked whales in the family Ziphiidae. It is smaller than most baleen whales yet large among beaked whales. Cuvier's beaked whale is pelagic and occurs in waters...
The European hedgehog (Erinaceus europaeus) is a hedgehog species native to Europe. It is a generally common and widely distributed species that can survive across a wide range of habitat types. It is a well-known species, and a favorite in European...
The Eurasian otter (Lutra lutra) is a semiaquatic mammal native to Eurasia. It is the most widely distributed member of the otter subfamily (Lutrinae) of the weasel family (Mustelidae). It is found in the waterways and coasts of Europe, many parts...
The Gray seal (Halichoerus grypus) is found on both shores of the North Atlantic Ocean. In Latin Halichoerus grypus means "hook-nosed sea pig". It is a large seal of the family Phocidae, which are commonly referred to as "true seals" or "earless...
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 Harbour porpoise (Phocoena phocoena) is one of eight extant species of porpoise. It is one of the smallest species of cetacean. As its name implies, it stays close to coastal areas or river estuaries, and as such, is the most familiar porpoise...
The Common bottlenose dolphin (Tursiops truncatus) is a wide-ranging marine mammal of the family Delphinidae. The common bottlenose dolphin is a very familiar dolphin species due to the wide exposure it receives in captivity in marine parks and...
The Mediterranean monk seal (Monachus monachus) is a monk seal belonging to the family Phocidae. As of 2015, it is estimated that fewer than 700 individuals survive in three or four isolated subpopulations in the Mediterranean, (especially) in the...
The Wood mouse (Apodemus sylvaticus) is a murid rodent native to Europe and northwestern Africa. It is found across most of Europe and is a very common and widespread species, is commensal with people, and is sometimes considered a pest. The Wood...
The Ringed seal (Pusa hispida) is a small earless seal that lives in the Arctic and sub-Arctic regions. It is the most abundant and wide-ranging ice seal in the Northern Hemisphere. Ringed seals are one of the primary prey of Polar bears and Killer...
The Beech marten (Martes foina) is a species of marten native to much of Europe and Central Asia, though it has established a feral population in North America. It is superficially similar to the European pine marten but differs from it by its...
The Etruscan shrew (Suncus etruscus) is the smallest known extant mammal by mass, weighing only about 1.8 g (0.063 oz) on average. It is characterized by very rapid movements and a fast metabolism, eating about 1.5-2 times its own body weight per...
The Hooded seal (Cystophora cristata) is a large phocid found only in the central and western North Atlantic. Hooded seal pups are known as "blue-backs" because their coats are blue-grey on the back with whitish bellies, though this coat is shed...
Long-finned pilot whales (Globicephala melas) are large oceanic dolphins. Pilot whales get their name from the original belief that there was a "pilot" or lead individual in their groups. They have also earned the nickname of "pothead whale" in some...
The pygmy sperm whale (Kogia breviceps ) is one of two extant species in the family Kogiidae in the sperm whale superfamily. They are not often sighted at sea, and most of what is known about them comes from the examination of stranded specimens.
A small whale (smaller than some dolphins), the Dwarf sperm whale (Kogia sima) is a rare and insufficiently explored species. Most of the available information about this animal is taken from occasional strandings. The Dwarf sperm whale is quite...
Bearded seals (Erignathus barbatus) are known as ‘ice seals’. They are members of a group of four Arctic seal species that live in Alaskan waters and use sea ice for feeding, resting, and pupping. Bearded seals get their generic name from two Greek...
The common vole (Microtus arvalis ) is a European rodent.
The Common minke whale (Balaenoptera acutorostrata) is a small member of the suborder of baleen whales. It is the smallest species of the rorquals and the second smallest species of baleen whale. American whalemen in the 19th century simply thought...
The pygmy killer whale (Feresa attenuata ) is a poorly known and rarely seen oceanic dolphin. It derives its common name from sharing some physical characteristics with the orca also known as the killer whale. It is the smallest cetacean species...
The Iberian wolf (Canis lupus signatus, or Canis lupus lupus, Spanish and Portuguese : Lobo ibérico) is a subspecies of Grey wolf that has been isolated from mixing with other wolf populations for over a century. The Iberian wolf forms the largest...
