The Arctic Whale is a term used to describe four species of whales that inhabit the Arctic Ocean and its surrounding seas. The Narwal (6 letters) is a medium-sized whale with a long, spiraled tusk protruding from its head. The NARWHAL (7 letters) is a close relative of the Narwal and is also characterized by its long tusk. The Sei (3 letters) is a large whale that feeds on plankton and small fish. Lastly, the ORCA (4 letters) is a large predatory whale that feeds on fish, seals, and other marine mammals. All four of these species are classified as Arctic Whales.