The beluga is a very cute whale that is friendly to humans. We can see white whales in the aquarium. If we touch their heads with our hands, we will feel that their heads are actually very soft, because they have special structures in their heads. Although their heads are more comfortable to touch, it is better not to touch them too often, because human hands may have harmful substances to belugas.
As mentioned above, the beluga whale's head feels soft because of its special structure. In fact, most whales in the suborder of toothed whales have a cavity in the center of the head, which contains some adipose tissue, which is the special structure of the head of toothed whales. Specifically, the main substances in the cavity are fatty acids, in addition to some other substances, but the proportion is not large. Toothed whales generally have this structure, but the specific shape is different. Belugas are also a kind of toothed whales, they also have a cavity in the head, the cavity has a fat structure, the shape is spherical, so it looks like the head of belugas is more round, feel more soft.
Belugas have evolved this structure because it plays an important role in the life of belugas, they are used for echolocation, is the focus of sound organs. With this structure, belugas can avoid some objects or animals that are harmful to them and play a role of self-defense. In addition, the head structure of belugas can help them control their nasal cavity, so as to produce different sounds.
