Penguins are a kind of birds. From the appearance, one of the important characteristics of birds is that the body is covered with a layer of feathers. As birds, penguins also have feathers on their bodies. However, because penguins are different from most birds, they are mostly distributed in cold places at high latitudes, so their feathers grow differently from most birds. The feathers of most birds grow on the embryo, but the feathers of penguins are directly and evenly distributed on their bodies, so they do not look like the feathers of birds, but like the fur of mammals. Moreover, the tips of penguin feathers are curved, a bit like tiles. This is the result of penguin evolution, adapting to the surrounding environment.
Little penguins are the first to grow fine fluff. In the process of growing up, the penguin's down will gradually fade, and then grow out of the feathers. The feathers of penguins play an important role.
The above has been introduced, penguins have hair, and the role of hair is very important. The main function of penguin fur is to keep warm. There are many penguins living in the Antarctic region, and the climate in the Antarctic region is very cold, where penguins want to survive, they must have certain measures to keep warm, and feathers can help them keep warm. In addition to feathers, the fat layer under their skin can also keep them warm. With the help of these body structures, penguins can maintain their body temperature at about 37 degrees, belonging to endotherms. In addition, the tips of penguin feathers are curved, like tiles, so they also have a certain waterproof effect, which can prevent seawater intrusion when they swim.
