Walruses (Odobenus rosmarus) live among the ice floes of the Arctic Ocean. These huge sea mammals are well known for their long tusks, which they use to stab opponents during fights. Walruses also use their tusks to "haul out", or pull themselves on to floating ice, and sometimes hook themselves to floes so that they can sleep while still in the water.

Walruses use their whiskered snouts to root out prey and blast away sediment with jets of air squirted from the mouth. They tackle shelled prey by holding them in their lips and sucking out the soft bodies.

Walruses live in large herds, sometimes of many thousands. In winter they feed in areas of thin sea ice, avoiding thick, unbroken ice, which they cannot break through from beneath. In summer, when the ice recedes, they spend more time on land.

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ARKive photos and videos of the walrus