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[[Image:Walrus1.JPG|right|Walruses.]]

[[Image:Walrus1.JPG|right|Walruses.]]

The '''Walrus''' ''Odobenus rosmarus'' is a large species of [[Arctic]] [[pinniped]], readily distinguished from all other marine mammals by the possession of a pair of substantial tusks, used for hauling them onto ice floes, and in the male by a baculum (penis bone) of unprecedented size, up to two feet in length. Walruses have no external ears, and are heavily whiskered, which aids them in detecting their main food, [[mollusc]]s living on the sea floor. Sometimes rogue walruses, generally large adult males, will attack and consume smaller [[seal]]s and toothed [[whale]]s.

The '''Walrus''' ''Odobenus rosmarus'' is a large species of [[Arctic]] [[pinniped]], readily distinguished from all other marine mammals by the possession of a pair of substantial tusks, used for hauling them onto ice floes. Walruses have no external ears, and are heavily whiskered, which aids them in detecting their main food, [[mollusc]]s living on the sea floor. Sometimes rogue walruses, generally large adult males, will attack and consume smaller [[seal]]s and toothed [[whale]]s.

Three populations, sometimes considered as subspecies, are recognized; in the north [[Atlantic Ocean]], the north [[Pacific Ocean]], and the [[Laptev Sea]].  

Three populations, sometimes considered as subspecies, are recognized; in the north [[Atlantic Ocean]], the north [[Pacific Ocean]], and the [[Laptev Sea]].