What's the difference between the bodies of orientals and westerners?

Human beings originated in Africa, no matter in the east or the west, everyone looked exactly the same in the distant ancient times. Later, mankind went out of Africa and went to different parts of the world. In order to adapt to different natural environment and climate, some physical characteristics of human beings have gradually changed. We orientals and westerners have many differences in body, which is manifested in the number of bones.

The first is skin color, which is the most easily observed difference. Because of the high latitude and lack of sunshine, the skin of westerners evolved into white in order to synthesize vitamin D better. Our skin in the east is slightly darker than white, and it is easier to get a tan.

Westerners have less melanin in their hair, so their hair is golden yellow. Oriental people have more melanin in their hair, which is generally dark black.

In terms of eye color, westerners' eyes are mostly blue, which is because their irises lack pigment. And our oriental eyes are mostly brown.

Westerners usually have sunken eye sockets and protruding brow bones. Orientals are flatter.

Westerners' noses are bigger, longer and straighter, which is more suitable for heating the inhaled cold air. Oriental noses are generally flat.

Westerners' faces are thinner, while orientals' faces are wider, shorter and rounder.

Westerners are taller and bigger. Of course, this is not absolute. Before the industrial revolution, westerners were not taller than China people, and their height was mainly related to their nutritional status. But generally westerners are taller than orientals.

Westerners' hair is vigorous, including beard, chest hair and leg hair, which is very thick and wild. In contrast, orientals have sparse hair and are not so exuberant.

The smell of human body in the west is stronger, which is due to the developed apocrine glands, while the smell of human body in the east is basically absent.

Western adults have 206 bones, while most adults in the East have only 204, two less than those in the West. Mainly the fifth toe is missing a section, and the left and right feet are just missing two pieces.

Westerners are mainly fat in the hips, while orientals are mainly fat in the waist.

Westerners love to drink milk, while we orientals have a lot of lactose intolerance.

Children born in the east are usually pregnant for ten months, while most westerners are pregnant for nine months.

East Asians have the highest average IQ, reaching 105. The average IQ of westerners is only 100.

From the evolutionary point of view, although orientals and westerners come from the same human ancestor, their genetic traits have changed in the process of long-term adaptation to nature due to the differences in living environment and diet structure, so there are differences in appearance and physical characteristics.

For example, skin color, early westerners lived in areas with high latitude, short sunshine time and low temperature, and their skin color was relatively white.

Most of the ancestors of orientals lived in mid-latitude areas with abundant sunshine and suitable temperature, and their skin color was yellowish, neither white nor black.

As far as hair color is concerned, it also depends on the intensity of sunlight. Westerners don't need that deep hair color to resist ultraviolet rays, so the hair color is mostly white, gold and gray.

Oriental hair must have more melanin to resist ultraviolet rays, so the hair color is black or brown.

In terms of body shape, the ancestors of westerners are mostly nomadic herders and hunters, who need to consume a lot of animal protein to supplement their nutrition, and are generally tall. The ancestors of orientals were mainly engaged in agriculture, often eating whole grains, and their bodies were not so tall.

From the appearance, westerners live in cold areas. In order to fully warm the cold air, the bridge of the nose is relatively high, and the distance between air circulation and heating is relatively long.

However, because the living area in the east is suitable in temperature and the air is warm and humid, there is no need for a straight nose to warm the air.

In addition, because there are many melanin in the East, the iris of the eye is no exception, which makes the color of the eye black or brown.

Westerners, on the other hand, have less melanin, and their eyes are light blue or gray.

As we all know, China people look different from westerners at first. Westerners have deep eye sockets, high noses, a lot of hair and high and white skin. Everyone admires the appearance of westerners: sexy and mature.

But you know what? It's not just the appearance, but the bones of China people look different from those of foreigners! Some students may be confused. According to the latest archaeological findings, all human beings in the world evolved from the apes on the African continent. Since they are the same ancestor, why is everything different?

We must first understand that the ancestors of human beings did come from the African continent and belonged to the same ancestor, but that was millions of years ago. In these millions of years, many things can evolve. In the history of evolution, many different things can evolve in millions of years.

China and Japan are close relatives, and the time of separate evolution is only several thousand years, so the difference is very small. Everyone has 204 bones, which can be obtained from anatomy. There is no doubt that we will not discuss this issue here. Today, we focus on the bones of westerners. According to anatomy, westerners have two more bones than us. It may be an exaggeration to say that two bones should be two segments, that is, the difference between two cartilage segments. Westerners have two more cartilages in their little toes than we do, so it is said that westerners have 206 bones, while China and Japan only have 204.

At present, the scientific community cannot give an accurate explanation for this difference. It only knows that it is caused by evolution. It may be that the living conditions of ancient westerners were hard, the little toes were easy to move, and it was easier to catch prey when hunting. Some experts believe that because westerners are tall and heavy, there are many cartilages on their little toes to cushion the soles of their feet from injury.

Whatever the reason, the topic of evolution will always escape. After all, Darwin's theory of evolution, one of the three great discoveries in modern times, has brought human society to such a high level today. So far, this theory can still explain many previously unexplained problems and cannot be shaken. Students interested in biology can learn more about Darwin's theory of evolution, play their role in the future development of human society, and become the second Darwin.