Antarctica is a continent and the animals you name are sea animals. They eat their food from the food chain in the Southern Ocean.
Penguins, seals, and whales.
No animals live in Antarctica. Several types of whales, however, come to the beaches in Antarctica where penguins and seals breed, because the breeding animals are food for the whales.
Whales, seals, and birds, including penguins and skuas travel to Antarctica to feed and to breed.
No animals live there year round. Seals and whales are visitors, as are penguins and several sea birds.
Animals that make the Southern Ocean their home, including seals, whales, penguins and other sea birds live close to Antarctica -- in the ocean.
Antarctica
No animals live in Antarctica, however, Penguins, Whales, Leopard Seals, Crabeater Seals, Weddell Seals, Orcas (Killer Whales), and a few insects make their home or breed in the Southern Ocean which surrounds the continent.
penguins, seals, sharks, whales and fish
There are many animals in Antarctica such as; various types of penguins, (Emperor Penguins, Gentoo Penguins, Rockhopper Penguins and others) Petrels, ( Skua, Antarctic Tern, Sheathbill and others.) seals and whales including the Orca or Killer Whale. Polar Bears are NOT from Antarctica, they're from the Arctic (North Pole) not the South.
Heres some more than three though: Fish Penguins whales seals arctic terns(bird)
No animals live on Antarctica: it's too cold and there is no food chain there.
If we think about this, it soon becomes evident that the are many warmblooded animals in and around Antarctica eg. Whales, Penguins, Seals, Terns and Sea gulls and other birds.