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The Arctic wolf (Canis lupus arctos), also known as the Melville Island wolf[1] is a possible
subspecies of gray wolf native to the Canadian Arctic Archipelago, from Melville Island to
Ellesmere Island. It is a medium-sized subspecies, distinguished from the northwestern
wolf by its smaller size, its whiter coloration, its narrower braincase, and larger carnassials.
Since 1930, there has been a progressive reduction in size in Arctic wolf skulls, which is likely the result of wolf-dog hybridization.