List of mammals of Antarctica

The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature; those on the left are used here, those in the second column in some other articles: There are over 260 species of carnivorans, the majority of which feed primarily on meat.

The southern elephant seal is believed to be the largest carnivoran of all time; bulls typically weigh 2,200 to 4,000 kilograms (4,900 to 8,800 pounds).

The lobodontine seals comprise about 80% of the global biomass of pinnipeds, a reflection of the high productivity of the Southern Ocean; all have circumpolar distributions surrounding Antarctica and breed on pack ice or shore-fast ice.

All artiodactyls in Antarctica belong to the infraorder Cetacea, which includes whales, dolphins and porpoises.

They are the mammals most fully adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater.