Why does the chicken head shake?

I wonder if you have ever played with a camera? Speaking of cameras, Bian Xiao ignited a strong passion. Bian Xiao took a semester of photography in college. It can be said that he also knows something about this. Speaking of camera shooting, the most difficult point can be said to be anti-shake, because the camera itself has a certain weight. If we hold it for a long time, our arms will be sore and our hands will tremble. However, there is an animal that has a very powerful anti-shake function. So, what kind of animal is this?

So, why does the chicken head have the function of anti-shake? It turns out that this has something to do with the eyes of chickens. Chicken's eyes are defective, that is, they can't rotate by themselves and have no anti-shake function. Therefore, if the chicken's head shakes freely like a human, it may be dizzy and unable to stand up.

Therefore, it is also a self-defect compensation function, which is why the head of a chicken is so anti-shake. On the contrary, because human organs are relatively developed, the functions of free rotation and focusing are relatively perfect, and they also have anti-shake function, so the anti-shake function of the head is not needed.

If you want to see if the head of a chicken will stay still, it's actually very simple. We hold the chicken's leg and shake it all the time. You can see that the chicken's body shakes with the leg shaking, and above the neck, it forms a neck moving, but the head does not move. Isn't it amazing? However, the survival of living things is constantly developing. At present, chickens have not evolved the function of automatic eye adjustment, so they can only be replaced by head image stabilizers.

However, although some human organs and senses are well developed, they are unmatched by the special skills of omnipotent animals in the animal kingdom. Although the cat's eye sees things in the daytime in the color system of old movies, it is really eye-catching at night. Although dogs' eyes can only see two colors, and they are not very good, their noses also have powerful functions. It seems that the complementarity between heaven and earth is universal.