The polar bear, the king of the Arctic, is considered by many to be a marine mammal, since it spends most of its time on sea ice hunting for seals.
Beruang kutub, raja daerah Artika, dianggap banyak orang sebagai mamalia laut, karena menghabiskan sebagian besar waktunya di lempeng es laut sambil berburu anjing laut.