Fur seal

Pinnipeds with dense underfur

Fur seals are any of nine species of pinnipeds belonging to the genera Arctocephalus and Callorhinus. They were formerly considered members of subfamily Arctocephalinae in the family Otariidae, but the fur seals in Arctocephalus are more closely related to sea lions than they are to the Northern fur seal, so it was found to be a polyphyletic group. They are much more closely related to sea lions than true seals, and share with them external ears (pinnae), relatively long and muscular foreflippers, and the ability to walk on all fours.

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