What is the function of Narwhal's tooth?

Narwhal is a small, rare arctic whale with a very long tooth (~ 7-10 ft or 2-3 meters), which resembles the corner of the legendary unicorn. It is used to decorate palaces and royal bars around the world, from England to Japan. The Narwhal had a (false) to the najwhal toy to cure various diseases. Until recently, however, the function of this tooth was a mystery - the means of its development resist normal models of the way in which mammal teeth develop. It acts as sophisticated hydrodynamic sensing, capable of measuring the temperature, water particle density, salinity and other information. Although one would imagine a tooth that looks like a corner that is rigid, it has a fine surface covered with a membrane saturated with millions of sensory nerves. These neural networks feed directly to the central nervous system Narwhalje This uniquely strong sensory apparatus for survival in the arctic environment.

Narwhal's tooth is unique among mammals, which partly explains why it took so long to find out. Spiral tusková morfolFor example, Ogie is unique for Narwhals. The peels are also common in men, but rare in women, unusual asymmetry for mammalty teeth.

Before the purpose of Tuska was definitely determined, several theories were strengthened to explain his purpose. It was a breathing tube, a cooler, a swimming rudder, a mating display and even a tool for breaking ice. Because the animal is so rare and lives in such cold areas, the lack of samples could be created theory. Efforts to cooperate between Nweeia and Inuit people from Canada led to a large catalog of animal behavior and helped the final determination of thfunction E Tuska.