Title: Are Narwhals Real Animals? - WorldAtlas
Headings: Are Narwhals Real Animals?
Are Narwhals Real Animals?
Description
Diet
Reproduction
Threats

Content: The tusk is actually a canine tooth projecting on the left upper jaw and through the lip to form a twirl helix. The tusk grows all through their lifespan up to 10 ft in length and weighs about 22 lbs. About one in 500 males have two tusks where the right canine also protrudes. Approximately, only 15% of the females grow a tusk that is long enough to form the spiral found in their male counterparts. The hollow ivory tusk is an innervated sensory organ possessing up to 10 million nerve endings that connect the brain to seawater stimuli in the external environment. It is believed that the males communicate about the nature of the water by rubbing their tusks together. Some scientists believe that it is also a mating ritual intended to impress the females. Diet
Narwhals have a restrictive specialized diet predominantly comprising of Arctic cod, cuttlefish, shrimp, Greenland halibut, and arm hook squid. To feed, they have to dive 1,640 ft. below sea level and use sound to detect their prey.