When a person walks upright, he doesn t need a tail, and the tail degenerates?

In the process of evolution, after gradually walking upright, there is no longer a need for the tail, so this organ does not play any role in our daily life, in the beginning, our tail before evolution was used for monkeys to climb trees with the help of tools, and can also be hung on the tree, but also played a certain sense of auxiliary. In addition, the tail of other animals also plays a role in expressing their own feelings, but the human face also omits hair, so it can express its own expression and mental world, and the function of the tail no longer exists.

So this is actually the mystery of the human body, in our daily study and life, professional teachers will also tell us that our skeletal muscles have a tail before, but it is not very useful, and it will slowly disappear in our evolution. This is also the reason why we find that the organs in the body are all working, and there is no organ that does not play its own use, which actually shows a truth, we must give full play to the excellence of our body, so as not to be unknown in this world.

After people walk upright, the auxiliary organ we use to walk is the foot, and it has also changed the previous way of walking on four legs, so this actually shows the variability of our human beings, and it is also a manifestation of wisdom, from the previous way of walking, it is not difficult for us to see that we have a close connection with these animals, and the world is also a whole. Biodiversity is also a precious part of the world, and only our composition can make up this colorful world.

In fact, there are also some newborns with tails when they come into this world, but for the normal life of this newborn, we will also use surgery to make him become the same as a normal person, not to become an alien, and to be treated coldly by others, which is actually a manifestation of genes.

In order to survive, when humans walk upright, it is not convenient to have a tail at all, and the tail cannot play a role in maintaining the balance of the body, and over time, the tail will degenerate.

Yes, the tail does not play a role, and in the course of tens of millions of years of evolution, it gradually degenerates.

Yes, because according to the theory of evolution, what is useless to the species will slowly disappear over time, and normal humans do not have tails.

In any case, all life comes from water, it should be affirmed. Because there can be no life in a dry place like the moon. But if you were born in the water, you should have a tail.

Because the tail is an important organ for aquatic life. Such as sports and hunting.

To say that lions and other animals need mosquito repellent, people don't. But a turtle can also come out of the water: it doesn't need a tail to swim on land, and it doesn't need a tail to swim in the water:

But why doesn't its tail disappear? Toads and turtles are the same. Why do toads have long tails when they are young but not when they grow up?

Humans are not tailless. When a person comes out of his father's body, he feels like a tadpole. He entered the mother's body for a long time, but when the tail disappeared, the baby had all the limbs.

We should accurately translate Darwin's theory of evolution into the theory of evolution, which includes both evolution and degeneration. For example, our brains are evolved, but our limbs or other parts are actually degenerate, and our bodies are relatively fragile. For example, we all have to wear clothes to protect against the cold.

Animals all have tails. In the past, there was a movie, played by Mr. Ge Cunzhuang, about the function of the horse's tail.

The tails of terrestrial wildlife not only repel blood-sucking mosquitoes and insects in forests and grasslands, but also help animals maintain balance during hunting or evading predators and running at high speeds. The ancestors of humans also had tails, but when they walked out of the forest upright, the vertigo of the tail disappeared. After hundreds of millions of years of natural evolution, humans follow the law of "use it, use it, waste it" and their tails slowly degenerate.

But everyone today still has a part of the coccyx that is not completely degenerated. In the process of reproduction of new life in an individual, once an ancestor is born, a tail will still grow (it has been reported abroad), but it must also be surgically removed.

The most important point of Darwinian evolution is natural selection, survival of the fittest. But there are some traits that do not affect the survival of organisms in the process of evolution, so why do these traits disappear as well? For example, the tail of a person, the tail does not affect the survival of a person, and the process of natural selection will not eliminate people with tails, but people now do not have tails.

So I think Lamarck's theory of use and absence, because people don't need to use tails, so tails gradually degenerate.

The human tail is not because the tail makes the person with the tail eliminated, but because the effect of the tail on the person is small enough to be eliminated, the natural choice is to eliminate the tail and let it degenerate.