The South American Fur Seal (Arctocephalus australis) is an aquatic marine (saltwater) mammal in the Pinnipedia clade and Otariidae family of sea lions and fur seals. It is a pinniped (fin-footed) and an otariid (eared seal).
The South American Fur Seal has dark-grey or brown fur. The male has a mane of hair around its neck. It has a thick neck, broad chest, broad shoulders, and an upturned nose. It has white whiskers on its chin called vibrissae. It does not have external ear flaps.
It has flippers for swimming. Its movement in water is called aquatic locomotion. Its body is streamlined with oily fur for swimming fast underwater. It has a fatty body, called blubber, which keeps it warm and buoyant. It has a flexible spine (backbone). It has short fins, and on land, it has difficulty walking, so it crawls.
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