Near the shallow waters of the Arctic Circle, there lives a snow-white mammal called a beluga whale.
The main difference between beluga whales and most whales is that their bodies are snow-white, while other whales are predominantly black or blue-gray. The snow white of beluga whales is a protective color like the snow rabbits and arctic foxes on land. In the Arctic waters where icebergs are dense, when encountering their natural enemies, beluga whales only need to be close to the iceberg and remain motionless, and they may be confused.
In addition to its special color, the beluga whale also has a huge raised forehead, which looks like an old life star in ancient Chinese myths and legends from the front. Coupled with the fact that beluga whales are born with a smiling face, they look extremely affinity! It is a popular animal in many aquariums.
In the whale family, beluga whales are a small species, their body length is only four or five meters long, and their weight is only about two tons. Compared with the blue whales, baleen whales and other animals that are known for their huge size, they are very small! Only about one percent of them!
Although the beluga whale is small but not thin, because the sea area where it lives is in a low temperature state all year round, the beluga whale has evolved a special body structure in order to maintain a constant body temperature.
First of all, they store a lot of fat in the body, which is about 15 centimeters thick, and they are like a thick barrier layer, isolating the body from the outside world, so that the body temperature of the beluga whale is not lost in the water.
It is estimated that half the weight of a beluga whale's body is made up of fat.
If the human body contains so much fat, it will definitely join the three high people. However, beluga whales' fat is mainly covered on the surface of the body, which allows their cardiorespiratory function and blood circulation to be unaffected by fat and still maintain a healthy physical state.
However, beluga whales are not covered in fat, and their heads are fat-free. This is because the beluga whale's head is an important communication tool. Their high foreheads can change shape during vocalization to help send specific sonic signals, allowing beluga whales to detect the environment, avoid enemies, find prey, and breathe in the sea by means of sonic positioning. You can also get in touch with distant beluga whales by sound waves and communicate! It can be said that the head of the beluga whale is a sophisticated radar system!
There are currently 150,000 beluga whales in the world, and I hope they can continue to breed happily in the ocean!