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13 animals of the Arctic

A narwhal swimming in the water

Photo: ZUMA Press

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Narwhal

Called the "unicorn of the sea" because of the long (sometimes up to 10 feet!) tusk protruding from its jaw, this unique Arctic creature can be found swimming in the waters of Greenland and Canada. Hunting and breeding patterns of narwhals are still a mystery to scientists, though we do know that their tusks aren't used for hunting. Their diet consists mostly of squid.