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The following is a list of native wild mammal species recorded in Antarctica. There are 23 mammal species in Antarctica, all of which are marine. Three are considered endangered, one is vulnerable, eight are listed as data deficient, and one has not yet been evaluated. [1] Domesticated species, such as the dogs formerly present, [2] are not ...
Antarctic krill (Euphausia superba) are a keystone species, forming an important part of the Antarctic food web.. At least 235 marine species are found in both Antarctica and the Arctic, ranging in size from whales and birds to small marine snails, sea cucumbers, and mud-dwelling worms.
Marine mammals comprise over 130 living and recently extinct species in three taxonomic orders. The Society for Marine Mammalogy , an international scientific society , maintains a list of valid species and subspecies , most recently updated in October 2015. [ 1 ]
The citizen science scheme by WWF and British Antarctic Survey aims to help conserve walruses in the face of climate change.
Raised sea levels, rising sea temperatures and changed currents are expected to affect marine mammals by altering the distribution of important prey species, and changing the suitability of breeding sites and migratory routes. [118] The Arctic food chain would be disrupted by the near extinction or migration of polar bears.
The skull of the leopard seal. The leopard seal has a distinctively long and muscular body shape when compared to other seals. The overall length of adults is 2.4–3.5 m (7.9–11.5 ft) and their weight is in the range 200 to 600 kilograms (440 to 1,320 lb), making them the same length as the northern walrus but usually less than half the weight.
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There are also many different animals that live in the sea water near polar regions. Squids are one animal that live in both Antarctica and the Arctic. They are the food source for other large animals such as the male sperm whale. [21] There is also a wide variety of fish in the polar regions. Arctic cod is a major species in the Arctic.