Narwhal
Size comparison with a human
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Cetacea
Suborder:	Olphinesa
Family:	Monodontidae
Genus:	Monodon
Binomial name
Monodon monoceros Linnaeus, 1758

The narwhal or narwhale (Monodon monoceros) is a rarely seen Arctic whale. This social whale is known as the "unicorn of the sea" because the male has a very long tusk. Very little is known about this whale. Narwhal means "corpse whale" in Old Norse.