Do you know why people in this world have differences in skin color? Obviously, they are all human beings, why are some people white and some people are black? Is this change in skin color really just because of geographical disparities?
In fact, in today's world, people scattered all over the world belong to the same race, and the reason for the difference in skin color today begins with several "human mass extinctions" ten thousand years ago.
As early as 100,000 years ago, the human race in the world was far more than the current Homo sapiens. Because after the results of the research results obtained by scientists on the structure of human DNA today, it was found that in addition to the genes that originally belonged to homo sapiens, there are at least "5 brothers" in the human gene chain in different regions, homo erectus, Floris, Neanderthal, Thoreau and Denisovans.
Naturally, this situation cannot be nonsense. Since Darwin proposed the Theory of Evolution, human beings themselves have not stopped exploring their origins and ways of evolution. So why did only Homo sapiens himself remain in the end, and the other brothers "disappeared"?
As early as 100,000 years ago, when humans had just evolved to be able to walk upright, there were six different kinds of hominids around the world. For example, in our country, there have been different primitive races such as Beijing people and Yuanmou people. However, due to geographical factors, the difference between the Beijing people and the Yuanmou people and other races is not obvious, and there is no need to divide a new race. Coupled with the fact that it was not our country's biologists who studied the origin of human beings at that time, but Western biologists, the primitive human races of the Chinese land, such as the Beijing people and the Yuanmou people, were included in the Neanderthal race.
It is also interesting to say that in the "Great Migration of Mankind" more than 12,000 years ago, Neanderthals and Homo sapiens migrated to our country and merged with our domestic primitive race. And this is the main reason why the differences between our Eastern and Western races are so great.
And with the difference of time and the movement of continental plates, the mountains of the Himalayas gradually provided a natural "barrier" for the primitive humans in our country, turning the entire eastern continent into a "paradise".
How habitable the climate of the East Asian continent is is, Presumably, need not be repeated. The Neanderthals and Homo sapiens who entered our country were also scattered in the land of China to recuperate, and with the passage of time, Neanderthals were gradually suppressed by homo sapiens who mastered the tools, and the genes of Homo sapiens began to dominate after this.
According to scientific research, the biggest difference between Homo sapiens and Neanderthals is that one body is more developed and one brain is more developed. From this study, it seems that while studying the evolution of human race, it also explains why Easterners are generally more intelligent than Westerners.
Of course, although several other human races have also caused some impact, the impact is not much. After all, at this time, human beings were still stuck in the same ethnic group gathering period as animals, and did not form a later racial concept.
If someone finds a livable land, then naturally some people have not found it. For example, floris and Denisovans, who are also one of the six primitive human races, were forced to become extinct during the Great Migration.
The extinction of the Floris people was different from that of several other human races, such as the extinction of Homo erectus, which only lost its group independence and merged with Homo sapiens in the Great Migration. The extinction of the Floris people is the real extinction of the race. According to western exploration of Floris remains and fossils, it can be known that more than 10,000 years ago, a very large volcanic eruption occurred on floris island inhabited by floris people. It was also because of this volcanic eruption that the Floris people who lived on Floris Island were swept away.
However, in terms of blood relations, floris are not completely extinct, because in the scientists' conjecture, floris are likely to be derived and differentiated from the homo erectus. Because from the genetic data extracted by scientists from Homo erectus skull fossils and Floris skull fossils, the proportion of similarities between the two has reached more than 80%.
In addition to the Floris people who were forced to completely extinct due to natural disasters, although there are no independent racial groups in other human races, homo sapiens have made many differences after completing the integration with these races. And this is also the reason why we now know why there are people of different skin colors between human beings.
People all over the world belong to Homo sapiens from the perspective of their primitive ancestors. However, due to the "great fusion of races" between different races during the Great Migration of human beings more than 10,000 years ago, skin color has become the dominant difference caused by different human genes to Homo sapiens.
By the way, the reason why our current genetic chains are more than ninety percent similar is because of the great racial integration more than 10,000 years ago.
100,000 years ago, Homo sapiens had at least "5 brothers", why only himself was left?
100,000 years ago, there were at least 6 kinds of humans, why were there only Homo sapiens left in the later period? What about everyone else?