? Penguins are a very famous animal. Most penguins live in the Southern Hemisphere, and many of them live in Antarctica for a long time. According to the category, penguins are a kind of birds. Although they don't look like birds, they are birds according to the category. As a bird, penguins also have some characteristics that are the same as other birds, for example, from the body structure, penguins also have wings. They have two distinct wings on either side of their body.
However, the wings of penguins are not exactly the same as those of other birds, and they are quite different. In terms of appearance, the wings of penguins are more like the fins of fish. This is the result of the slow evolution of penguins over a long period of time. Because the survival of penguins requires them to hunt in the water, their wings have evolved to look like fish fins, which are different from the wings of other birds. Moreover, penguins are also flightless and have lost the ability to fly.
? As mentioned above, although penguins have wings, their wings can not be used to fly like those of many other birds. Therefore, penguins are a special kind of bird in this respect. In fact, early penguins can also fly, but their body structure has changed in the course of evolution. Because penguins need to use their wings to swim in the process of survival, and basically do not need to fly, their wing structure has gradually changed. Until now, penguins have not been able to fly, but have the ability to swim, which can help them move in the water and catch certain food.
