Title: Why Do Narwhal’s Have a Horn? – North American Nature
Headings: Why Do Narwhal’s Have a Horn?
Why Do Narwhal’s Have a Horn?
Narwhals use their horns for echolocation, sparring, mating rituals, and other uses.
What Do Narwhal’s Use Their Horns For?
Catch Food
Sensory Organ
Echolocation
Weapons
To Attract Females
Do Female Narwhal’s Have Tusks?
What Is A Narwhal’s Horn Made Of?
Where Does The Horn Of A Narwhal Come From?

Content: Narwhal horns are made of ivory and are similar to the tusk of an elephant. The outer cementum layer of the narwhal’s tusk is porous. Its inner dentin layer has microscopic tubes that are found in the middle section. The pulp is in the center and has nerve endings connected to the brain of the animal. Because of this structure, the tusk is very sensitive to temperature and chemical differences in the environment. Unlike human teeth, the narwhal’s tusk is built from the inside out. It is soft on the outside and gradually gets hard and dense on the inside. This makes them the opposite of our teeth. On the surface of the tusk are millions of holes. We also have these holes in our teeth, which make them sensitive to cold food or drinks.