Walruses are essentially circumpolar in their distribution. The Atlantic subspecies is probably widest ranging in their distribution from the Canadian Arctic to the Kara Sea of Russia. They were once found as far south as Sable Island, off the coast of Nova Scotia and at the Magdalen Islands and Prince
Edward Island in the Gulf of St, Lawrence. However, northern Hudson Bay is as far south as they now occur.
The Pacific subspecies primarily inhabits the Bering and Chukchi Seas. As this subspecies moves with the pack ice or floating ice, the majority of Pacific walruses are in the Bering Sea in winter and the Chukchi Sea in summer. Births occur on ice usually in the region between Nunivak and St. Lawrence Islands.
The Laptev walrus is found in the eastern Kara Sea, the Laptev Sea, and the Siberian Sea.
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