Marine mammal (wikipedia)

A Sea Otter (Enhydra lutris), a member of family Mustelidae. A Polar bear (Ursus maritimus), a member of family Ursidae. California sea lions, members of the family Otariidae. Desmostylus. Marine mammals, which include seals, whales, dolphins, and walruses, form a diverse group of 128 species that rely on the ocean for their existence. ................
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