What is the horn function of narwhal?
1, perception of the outside world
Narwhals can sense the outside world through their horns and transmit information to the brain. For example, although narwhals are good at diving, they can only stay underwater for about 20 minutes before returning to the surface to breathe. They can use their own long tooth nerve to detect the temperature, pressure and salinity of seawater, so as to find out the most suitable deep water area for survival and diving.
2. Information transmission between the same kind.
Narwhals send messages by touching each other's horns. When two or more narwhals touch each other with their horns, we may think that this is just a struggle between them, but in fact, they can also present a picture of quiet years, just as people communicate with each other when they meet.
Step 3 be used for courtship
Narwhals look for females in estrus through their horns and show them their unique charm. Generally speaking, only male narwhals will have horns, but it is not excluded that a few females will grow horns, but they will be shorter than males. If the male narwhal's horns are thicker and longer, it means that it has the supreme position in this group, so it can give priority to its mating partners and will be favored by many female whales.