The long unicorn-like tusk that grows clockwise out of its head. The tusk is actually the narwhal’s left tooth. Male narwhal, and some females, have two teeth. Usually only the left tooth becomes a tusk, but there are occasionally whales with double tusks.
Males are larger than the females. The largest reach around 4.9m
Narwhals love eating squid, shrimp and fish, especially Arctic fish species like Greenland halibut, Arctic cod and polar cod.
Narwhals prefer deep water, away from the shore. They’re mainly found in the Atlantic sector of the Arctic.