African heatstroke joke

Because a large number of black cells of African blacks protect human skin, African blacks can't survive in hot Africa without a large number of black cells, so their skin will evolve into black.

0 1, User: Did Africans get a tan? African ancestors: hmm!

In many people's minds, it is believed that African blacks are tanned because the sun is too toxic, but what I want to say is that children born in other countries and Africa are still black, regardless of whether pregnant women are born in Africa or not. It can also be simply said that African blacks actually have black skin because of genetic reasons.

Even if there is a sun, it will not affect Africa after all. You know, Africa is located in a hot area, and the sun is generally very poisonous. But the temperature outside is high, and the temperature of the human body is almost fixed, maintaining at 36? About. Because we need to know that people will get heatstroke if they have a temperature problem, and African blacks can avoid heatstroke by drinking more water.

02. Black skin in Africa is a process of survival of the fittest in nature.

Then a friend wanted to ask, since I didn't get sunburned, why is it so dark? That's because the ancestors of African blacks have been sunburned by the ultraviolet rays of the sun in the long evolution process. Over time, the skin surface cells will be damaged, and may even become horrible skin cancer.

Therefore, if African blacks want to survive in hot Africa, their skin will produce a large number of melanocytes, which can protect human skin from sunburn caused by ultraviolet rays from the sun. In short, African blacks have produced a large number of melanocytes in order to survive in the process of evolution, which conforms to the survival of the fittest in nature.

Cheng, so now we see that black people in Africa have black skin for generations. That's why.

To sum up, the reason why African blacks evolved into black skin was to survive in the hot African region, otherwise they would have been sunburned by the vicious ultraviolet rays of the sun and could not survive.