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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 ...
These two species live north of the sea ice, and breed in harems on beaches. The other four species can live on the sea ice. Crabeater seals (Lobodon carcinophagus) and Weddell seals (Leptonychotes weddellii) form breeding colonies, whereas leopard seals (Hydrurga leptonyx) and Ross seals (Ommatophoca rossii) live solitary lives. Although these ...
The armadillos are small mammals with a bony armored shell. All 21 extant species are found in South America, where they originated. Their much larger relatives, the pampatheres and glyptodonts, once lived in North and South America but became extinct following the appearance of humans. Family: Dasypodidae (long-nosed armadillos) Subfamily ...
As a result, Central America currently has 41 mammal species of Neotropical origin, [n 18] compared to only three for temperate North America. However, species of South American origin (marsupials, xenarthrans, caviomorph rodents, and monkeys) still comprise only 21% of species from nonflying, nonmarine mammal groups in Central America, while ...
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The remaining 30% are distributed across the Americas, primarily in South America, with thirteen species in Central America and a single species, the Virginia opossum, inhabiting North America north of Mexico. Marsupial sizes range from a few grams in the long-tailed planigale, [1] to several tonnes in the extinct Diprotodon. [2]
This species may also exhibit the greatest sexual dimorphism of any mammal in terms of mass ratio, with males typically five to six times heavier than females. [12] On average female southern elephant seals weigh 350 to 900 kg (770 to 1,980 lb) and measure 2.6 to 3 m (8.5 to 9.8 ft) long, whereas bulls can range from 1,500 to 3,700 kg (3,300 to ...
Antarctica contains research stations and field camps that are staffed seasonally or year-round, and former whaling settlements. [1] Approximately 12 nations, all signatory to the Antarctic Treaty , send personnel to perform seasonal (summer) or year-round research on the continent and in its surrounding oceans.