Antarctic animalsHome About Antarctica Animals Penguins Penguins are flightless birds. They are excellent swimmers, and can dive to great depths. Seals & sea lions Seals and sea lions are one of the few groups of marine mammals that live in the Antarctic. Whales 4 species of toothed whales and 6 species of baleen whales are found in Antarctica. Fish There are only a few types of Antarctic fish. They are all well-adapted to the cold. Flying birds Over 100 million birds breed around the rocky Antarctic coastline and offshore islands. Krill Antarctic krill is one of the 85 species of krill that lives in the Southern Ocean. Land invertebrates Terrestrial invertebrates are the most species-rich animal group found in Antarctica. Salps Salps are planktonic chordates without ceolom, segmentation or bony tissue. Seabed (benthic) communities Learn about the plants that live on the seabed around Antarctica. Sponges Antarctic sponges are long-lived and sensitive to disturbance, making them a sensitive indicator species. Squid Squid are invertebrates. They range in size from barely 2.5cm to almost 18m long! Adapting to the cold Find out how Antarctic animals are adapted for some of the coldest environments on earth. This content was last updated 1 month ago on 25 August 2020.