The tail can maintain body balance. Since it is widely used, why don’t humans have a tail?
There are different forms of animals in nature, including birds, fish, reptiles and so on, they all have their own characteristics, most of them have eyes, mouth and so on, which has become their standard. Since 500 million years ago, the tail has appeared, evolving step by step. It grows on the bodies of various organisms and plays different roles. Take gecko for example, its tail can be used to store fat. When someone accidentally touches the tail of gecko, it will break off and then grow a new tail.
The tail of birds will become more stable in the process of flight, and the tail of rattlesnake is mainly used to scare away predators. For most creatures, the existence of the tail has an obvious purpose, that is to maintain balance. Humans don’t have tails, including other chimpanzees. Many people wonder why humans didn’t evolve tails since tails are so widely used? The tail can maintain body balance. Since it is widely used, why don’t humans have a tail?
Why didn’t humans evolve tails?
First of all, we have to start from the posture of human walking. Most primates land on four feet, but human beings are not the same. Walking on two legs brings great advantages to human beings and consumes much less energy. When walking on two legs, we need to spend a certain amount of energy. Every step of gravity will pull human forward. The total energy consumption is one fourth less than that of walking on all fours, although the energy reduction is not much.
In this survival of the fittest nature, saving a little energy will provide more living space. The most important thing is not to maintain balance. The upper part of human body is relatively heavy, and these weights are in the lower limbs, so the tail is needed to maintain balance. The appearance of the tail is not very useful. It is a chicken rib organ for human beings, and it also affects the sitting posture, so it is very important in the process of evolution It’s gone.
A large organ preserved in human evolution
In the process of human evolution, a major organ has been preserved, that is, the caudal vertebrae, which is left by human ancestors and rarely used in life. When you accidentally fall on your butt, the caudal vertebrae will be injured, which is very uncomfortable. Although humans don’t have tails, they are still obsessed with tails. In Japan, scientists have invented a kind of robotic tail. This kind of robotic tail is made by imitating animal tails and can swing left and right. Its biggest function is to maintain body balance. Its original purpose is to keep the elderly from falling down during walking.
It has to be said that the purpose of this invention is good, and it also brings great help. If human beings put their tails on again, it will cause a lot of controversy. Many people think it is useless to do too much, and some people think it will bring more fun to life. It’s hard to say whether the tail is good or bad. After all, the tail has the function of tail. Although it’s a chicken like function for human beings, it’s very important for other animals. Everyone has the right to choose. Do you think human beings have a long tail? It’s better not to have a tail? You can leave a message for interaction.