How do the animals in the Antarctic survive?

adaption, only a few animals live in the arctic, such and penguins, polar bears, and sea animals like whales and sea lions. the land animals have fur that keeps them warm, a polar bear's is really really thick with multiple layers, and a penguins have down under their feathers. thats the same stuff that is in some coats and pillows. the whales and sea lions, have blubber which is basically just fat!