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None, no animals live in Antarctica.
Antarctica is a continent. No sea creatures live on land.
There is no food chain for land animals on Antarctica, because there are no land animals that live there.
Seals live in oceans and in other oceans in addition to those that live in the Southern Ocean, which surrounds Antarctica. Seals are not land animals: Antarctica is a land mass.
Well that depends where you live. Antarctica is always cold and most likely always snowy. Then compare that to where you live.
Orcas do not live in Antarctica. Antarctica is a continent and orcas are marine animals. Orcas swim in the Southern Oceans that surround the Antarctic continent.
No. The temperature is too cold in Antarctica to support wild animals that must live on land.
No bears or land animals of any kind live on Antarctica: it's too cold and there is no food chain.
All types of penguins only breed on Antarctica's beaches. These are sea birds and do not live on land.
Learn to live lightly on the land and you will help the entirety of the earth's environment, including Antarctica.
You can learn how best to live lightly on the land.
Penguins do not 'live' in Antarctica. Penguins are sea birds that live at sea, but that come to land to breed. The breeding season in Antarctica is several weeks to several months, depending on the type of penguin.