Pigs, a common animal in daily life, are also a particularly important source of meat in our daily life. It has existed for many years in the history of China, but the pig can't see the sky. He can only see what is in front of him, so he can't see it because his sight is blocked, which is also very pitiful. Maybe he can't see the sky unless his whole body is turned over.

First of all, it can't be said that pigs can't see the sky all their lives, but they can hardly see the sky. I believe everyone has seen the pig head. You should be able to find that the pig's forehead is very long and the meat in this position is also very fat. So the line of sight above the pig is basically blocked by the forehead.

As a pig, it can't look up at the sky. For this, many people find it incredible. As long as it is a creature, it can look up, but why can't a pig? Please think about what a pig looks like. Its neck is thick, and even its head is heavy. Originally, that body is difficult to support the head, so it can't support the whole head, because if the head is raised, the whole body may get up.

Since the past, pigs have been a symbol of laziness and are very inactive. As long as you can lie down, then the pig will not choose to stand. If you don't need to look up, then the pig will never look up. Generally speaking, pigs keep their heads down when they eat, which makes the structure of their spine look like today.

Secondly, unlike humans, the pig's spine is basically flush with the ground, but its neck is short and its meat is thick. In addition, the pig's spine has no cartilage and cannot be greatly bent, so it is difficult for the pig to look up. According to relevant data, the range of pig head is about 20 degrees.

Therefore, it is difficult for pigs to see the sky in their lives, but it is mainly because they are lazy and few people know it. Every living thing has its own unique characteristics.