The long tusk of the male narwhal earned these whales their fanciful nickname. But there’s more to these Arctic mammals than their unique spiral tooth.
A whale dives in Disko Bay, off the west coast of Greenland, where a hybrid narwhal-beluga skull was found.
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A skull found in West Greenland is proven to be the first-generation male offspring of a female narwhal and male beluga whale. The creature’s unusual diet may have been a result of its strange teeth.
A narwhal is spotted swimming with a group of belugas in the St. Lawrence.
Group for Research and Education on Marine Mammals (GREMM).