What are the obvious evolutions that have taken place in human beings in the past 100 years?

I think that people are developing in a better direction now, this era is progressing, and people's lives are gradually getting better, and this is the most obvious change.

In the past hundred years, our life has become better and better because of the strength of the motherland, since the founding of the Communist Party of China in 1921, let us break away from that feudal society, the founding of the Communist Party of China, to the Chinese who were in a period of national crisis brought hope and light, but also to the country brought a earth-shaking change, let China be reborn, laid the foundation for our beautiful life today, those heroes who fought on the front line of the times, won us the stable life we are now. They are the heroes of our people, the heroes of our country.

Recently, I watched the TV series "Awakening Era", which made me deeply feel how heavy the patriotic heart exuded by those people in that era, they are always fighting for the awakening of the motherland, and they can dedicate their lives for their country, such as: Mr. Li Dazhao used his life to wake up those who are desperate for their lives, so that they have hope for this era, and fight for it to revolution, he used his life to influence the people around him. Another example:

Chen Duxiu used the knowledge of the new culture of "New Youth" to alert all people in this era, and always adhered to the revolutionary spirit of anti-imperialism and anti-feudalism. They have transformed this nation with their actions.

Therefore, I think the most obvious change that has occurred in the past 100 years is the change of the country and the people, we have changed from the era when we could not guarantee food and clothing to the era when we are now living with abundant food and clothing, we have changed from the era of continuous war to the era of peace and warmth, from the time when we can't afford to eat or wear clothes to the rice and pasta that we eat every meal, and we wear beautiful clothes and enjoy the happy life that this era brings us, this is the biggest change. This era has given us all equal lives.

The discovery of interstitial organs, the increase in lifespan, the early adolescence, the decrease in body temperature, the increase in height, this is a very obvious evolution.

The obvious evolution is that people's facial features are becoming more and more delicate and three-dimensional, and the most important thing is that human thinking is becoming more and more agile, and life is getting better and better, and it is no longer the era when you couldn't afford to eat and wear warm clothes.

For example, human beings are becoming more and more civilized, and their quality has been improved, and science and technology have also been progressed and developed, and various electrical appliances and various high-tech products have also appeared, and the standard of living is also constantly improving.

This question reflects a limited state, and all unreasonable and inappropriate states are actually a limited local state. If you can zoom in to a larger level, it will be reasonable and very appropriate, but because of people's limitations and personal limitations, there will be all kinds of unreasonable, inappropriate, unfair, problems, and this problem can be personal, some people or most people coexist.

But the irrationality and inappropriateness of this existence is not only the whole thing that people can know and understand. That is to say, it is obviously reasonable and appropriate, but because of people's limitations, it will feel unreasonable and inappropriate, and there are various reasons, and every point of view and every reason can be supported by some people, and some can also be supported by the majority of people, but the Tao Te Ching is very beautiful, and naturally it will not argue with people or anything.

Medical explanation: The shape of the pelvis changes during childbirth, and the baby is free to rotate according to the shape of the mother's pelvis, so that the body curls up, so we often see the baby's head come out first, but we still can't imagine how such a big child comes out through various efforts. In the case of how children will suck when they are born, they are just born, they don't know anything, they don't know anything, but whether they eat breast milk or milk powder, sucking seems to be innate, and the biology explains it as a conditioned reflex, saying that it is innate.

Rather, everything survives and develops in the laws of nature, and many things that seem unreasonable, unfair, and unsuitable are all derived from the laws of nature, so people can only conform to the crowd, adapt, and utilize. For example, in terms of life, I think everyone hopes for immortality, at least a longer lifespan, but the reality is that everything is related to cause and effect, and it is regulated by the laws of nature, and people can only obey and use it. A flower, a grass and a world are far from being clear and influenced by one person.

The future evolution direction of human beings is the combination of human beings and artificial intelligence, which will undergo major changes in human intelligence, human physique, human appearance, etc., and the future life span of human beings will reach more than 500 years, be more intelligent and have a better appearance.

I don't think there is a place for human beings to evolve anymore, our human beings are already higher animals, and if they evolve again, they will not belong to human beings.

I don't think the human structure needs to evolve now, because human beings are very powerful now, and human beings can do a lot of things.

I think the places that still need to evolve are the human brain, the human sense of smell, the human limbs, the various organs of the human being, the human eyes, these places still need to evolve.

Humans appeared 250,000 to 40,000 years ago.

It is generally believed that Homo erectus evolved from Homo erectus, but it is controversial[1] that Homo erectus became extinct after the later rise of Homo sapiens (modern humans) out of Africa or before that. Late Homo sapiens (new humans) are anatomically modern humans. It began to appear about 450,000 years ago.

The main morphological differences between the two are the reduction of the anterior teeth and face, the weakening of the brow ridge, and the increase in skull height, which is more pronounced in modern humans. Late Homo sapiens arms were no more than knees, body hair was degenerated, there was language and labor, and there was a social and class character.

Historical Development of Mankind:

Homo sapiens evolved from Homo erectus, which has a larger brain capacity. Modern humans (homo sa pianssapians) and Homo sapiens belong to the same species. The development and complexity of the brain may be conducive to social life in groups, which is very conducive to cooperative prey, food gathering, and information exchange, thus giving Homo sapiens an advantage in the competition for survival.

Obvious religious rituals have developed among Homo sapiens, and these rituals may have been based on the idea of life and death. According to current research, animals probably do not have a concept of life and death. Homo sapiens began to dig graves for the dead of their kind, placing tools and clothing in the tombs so that the dead could be used in another world.

The above content reference:Encyclopedia — Humanity.

The Cenozoic Era, which is about 70 million years ago, is the era of mammals and humans. In the Paleocene (about 70 million years ago) of the Tertiary period of the Cenozoic Era (about 70 million years ago to 3 million years ago), advanced mammals were born; The earliest primates appeared in the Eocene (about 60 million years ago); In the Oligocene (about 40 million years ago), monkeys and apes arose among primates; During the Miocene (about 25 million years ago), Australopithecus spread across Eurasia; By the Pliocene (about 12 million years ago), Australopithecus gradually transformed into humans. The Quaternary period of the Cenozoic Era (about 3 million years ago to the present) is the era of mankind.

In the Pleistocene of the Quaternary (about 3 million years ago), hominids began to evolve into modern humans. Humans developed from the higher primates of Australopithecus.

Humanity goes through four stages of development after becoming a fully formed person.

One is the early ape-man, also known as the capable man. Appeared between 3 million and 2 million years ago.

The second is the late ape-man, also known as Homo erectus. Its age ranged from about 1.8 million to 230,000 years ago.

The third is early Homo sapiens, also known as the ancients. It lived between 200,000 and 40,000 years ago.

The fourth is Late Homo sapiens, also known as Homo sapiens. Appeared 40,000 years ago to the present. Late Homo sapiens is modern humans.

There are two divisions in the theory of biological evolution, one is that Australopithecus was born 7 million years ago, and the other is Homo sapiens that was born 2 million to 3 million years ago, of which the latter is accepted by more people.

A: The first development of human evolution was bipedal walking.

Analysis: The upright walking of human ancestors was a decisive step in the evolution from Australopithecus to man. In the process of entering the orange beam, the forelimbs are freed from support and walking, and the slag lead tool can be used.

The common ancestor of humans and modern apes is the forest Australopithecus Wild Wheel Modern great apes include: Gorilla Spine Jun, Matsuno Shin Chimpanzee, Gibbon and Orangutan Major events in human development and evolution are: walking upright - making and using tools, further development of the brain, and the production of language.

Upright walking is the basis of evolutionary development, upright walking is a sign that human beings are free from the shackles of the forest and open up a new home, and it is the basis for using tools to make tools Because the use of tools and the manufacture of tools make the human brain more developed, language is produced in the process of labor communication

The upright walking of human ancestors was a decisive step in the evolution from Australopithecus to Homo. In the process of evolution, the forelimbs were freed from support and walking, and they were able to use tools to fight blindly.

Human evolution first developed the brain, which enabled humans to better understand and control the natural environment and thus better adapt to it.

Human beings evolved from forest australopithecus, and in the course of human evolution, Daihui has gone through four stages: Australopithecus, Homo erectus, and Homo sapiens.

Australopithecus was able to use natural tools, but not manufacturing tools, and was the earliest hominid that has been discovered;

Capable people can make simple tools (stone tools);

Homo erectus made stone tools for different purposes and learned to use fire, which was the most critical stage of human evolution.

Homo sapiens had learned to make fire by hand, to make fine stone and bone tools, and to hunt and fish.