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Arctic wolves are beautiful creatures with long, white fur to help them blend in with their snowy surroundings. They are large and powerful animals with the males reaching a weight of up to 46kg (102lbs). Most Arctic wolves are found in northern Canada. Arctic wolves have relatively little fear of people, thought to be due to their infrequent exposure to humans. Although attacks on humans are rare, a few documented cases exist. The Arctic wolf's primary food source is the muskoxen and Arctic hares, although they also feed on caribou and lemmings. Capable hunters, the Arctic wolf has been found on two occasions to have preyed upon polar bear cubs.