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The premise is that the assumption that the yellow or white race evolved more perfectly, but this assumption simply does not hold. In the biological sense, there is only one kind of human being in the world, that is, Homo sapiens, there is no subspecies, all people's genes are only about 80,000 years apart, and no subspecies has been formed, so the differences in intelligence and physical strength of the offspring of arbitrary intermarriage between ethnic groups are not significant, I ran 100 meters for 13 seconds, Porter 9 seconds 6, Su Bingtian 10 seconds, the gap between me and Su Bingtian is greater than the gap between him and Bolt, that is, the individual differences within the group are greater than the average gap between the groups. This is even more true in terms of intelligence, where there is no evidence that yellows have higher IQs than blacks.
In terms of skin color, humans are progressive skin tones that are positively correlated with the environment in which they live for a long time. It is an indisputable fact that human beings originated in Africa, that is to say, we are all a branch of the black people, and genetic archaeology has found that Europeans 7,000 years ago mutated into blue eyes, but they are still black**, and obviously white** appeared very late.
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The so-called yellow race and the so-called Caucasian archaeology have always believed that they were separated 35,000 years ago, because the fossils found by archaeologists show that the yellow human body appeared in 35,000 years, but this archaeology cannot prove when the yellow race and the Europeans were separated, and at the same time, it cannot prove the time when the Caucasian people appeared, and only one conclusion has been reached that the East Asian race was once the tallest human race in the world, known as the tall and thin race. Moreover, it is difficult to determine what skin color the ancestors of Europeans and Asians 35,000 years ago were, but it is generally believed that the skin color may be similar to that of today, so whether black people can evolve into yellow people in China is unlikely at present, and it is unlikely that they will evolve into white people.
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In terms of the general trend of evolution, it must be that there is less and less body hair and higher IQ, so whether it is white or black, you have to work hard.
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Human beings have developed and evolved on the earth for millions of years, from ancient times to the present, human footprints are all over the world, it can be said that the distribution of human beings is very wide, because different natural living environments will also produce different traits, the most typical is the difference in color, but this does not mean that yellow people, black people and white people are different races, modern humans are the direct descendants of Homo sapiens 200,000 years ago, so they belong to the same species, and there is no reproductive isolation between each other. In fact, it's not just yellow and white people who have the same ancestry, but so do black people. Differences in skin color are not a factor that distinguishes ancestors, it is only an outward form in a long evolutionary process.
Not to mention human beings with different skin colors, all species on the earth have a common ancestor, such as humans, pigs, cows, sheep, etc., of course, in a broad sense, people, pigs, cows, sheep and other things are the descendants of primitive life more than 3 billion years ago.
<> mainstream theory in modern science is that the common ancestor of humans came from Homo sapiens, which emerged from Africa more than 100,000 years ago and migrated to other continents such as Europe, Asia, and of course, Oceania over a long period of time. The Amerindians and Mayans also share a common ancestor with the mainstream human civilization, not as some on the internet claim"The Mayans are aliens"!
Science is rigorous, and conclusions cannot be drawn casually. The reason why different groups of people have a common ancestor is mainly based on human genetic research, such as the dyeing system, which can be traced back to our human ancestors based on the genes of modern people, and archaeological evidence. There is also clear and direct evidence that there is no reproductive segregation between people of different skin colors, that is, people of all skin colors can intermarry and reproduce, suggesting a common ancestor.
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I don't think Caucasians and yellows evolved from the same ancestor; Because the color is different, the surface genes are different, and the chromosomes are different, then it is not the same ancestor.
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Yes, because they all evolved from apes at a very early age, it is only because in the later evolutionary process that the external form is different, so it leads to different skin colors.
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It is the same ancestor that evolved, because ** does not distinguish between ancestors, it is mainly manifested in the process of evolution, and the situation of ** is determined by genes.
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There are also brown people. I suggest you read the article on the origin of mankind to understand.
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Caused by environmental factors. To put it simply, it is natural selection done to better adapt to the environment.
People who live in the African environment have evolved their skin color to black in order to constantly adapt to the African environment. High melanin content to absorb ultraviolet rays from sunlight and protect internal structures from damage; Sweat glands on the body surface are particularly dense so that normal body temperature can be maintained or quickly restored in times of extreme heat; The nose is low and wide, the nostrils are short, the lips are thick, the mouth is large, and the body hair is small, which is convenient for heat dissipation; The hair is curled like wool, so that there are many gaps around each curl, the void is filled with air, and the air has poor heat transfer, therefore, the curls have a heat insulation effect, protect the mind from harm, etc. These are all physiological evolutions that have been completed under environmental factors to better adapt to the environment.
Caucasians originated in colder regions, where the sun is oblique, the light is weak, the ultraviolet rays are weak, and the local residents have low melanin content and are light-colored; The body is thicker and taller to reduce heat loss; The nose is high and narrow, and the nostrils have long passages to preheat the cold air inhaled; The hair on the surface of the body is dense to protect against cold, etc.
The yellow race, on the other hand, is in the middle, a transitional form.
In terms of physiological structure as well as advantages. The dominance of blacks in sports is particularly pronounced.
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To summarize it in general:
Caucasians: The muscle density is slightly smaller, it is easy to float in the water, and the muscles are explosive, so the white people have a greater advantage in swimming and field competitions.
Black people: high arch tolerance, hormone secretion in the body, well-developed sweat glands, can quickly lower body temperature. The muscle density is slightly higher, so blacks have a big advantage in running, but not in the water, so there are almost no blacks in the water program.
Yellow race: strength, bounce, explosiveness is not as good as white and black people, but they have advantages in flexibility and skill events, so yellow people have achieved very good results in gymnastics, diving, table tennis, badminton, shooting and archery. And because the center of gravity of the yellow race is slightly lower, they also have an advantage in weightlifting events.
Our athletes have won gold and silver in the Olympic Games, is this because of our poor health?
If you lose, you blame the human race for not being able to have a good physique, which is either shirking responsibility or being arrogant.
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Yellow race. Yellow people have white or olive skin color, and most have black hair, and a few have brown hair. They have brown or black eyes, but a few are blonde.
Black hair, moderate beard and body hair, and a light body odor. The chin is not prominent, but some people are pointed, while others are flattened. The height of the bridge of the nose is medium to high, and the index of the nasal tip is medium.
The eye is medium-fissure, brown iris, the upper eyelid fold is well developed, and most eyes have an epicanthal fold covering the lacrimal mons. The spade-shaped structure of the tongue surface of the upper incisors is also one of the distinguishing features of the yellow race.
The faces of American Indians are mostly long-cranial and have a very prominent nose.
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