How did the first "man" on earth come from?

About the definition of "person"

Actually, I want to ask: Where did people come from? Maybe this question can be answered. But if you have to ask: where did the first "person" come from? I think there should be no solution to this problem, and in a high probability, human beings will never be able to figure it out. The reason for this is also very simple, that is, we can't define what is "person" at all. .

You might say that people can walk upright. But you must know that orangutans can do this, let alone apes.

You may also say, if you are good at using tools, what kind of tools do you need to be a person? If you look carefully, some animals can also use stone tools.

You may also say that a person has a large brain capacity, but how big is his brain capacity? The brain capacity of an able person is only a little more than half of what we have now. Is it a person? Where's the craftsman? Neanderthals have a slightly larger brain capacity than we do now. Is that human?

Therefore, it is actually difficult for us to define "person" accurately, and the definition of "person" itself is very vague. Then the question is coming, why is there such a problem?

There is no way to find the first "person"

In fact, the answer is very simple. The reason why people are human is actually the product of the evolution of life for 4 billion years, and the whole process is gradual, not overnight. Moreover, the time span of evolution is very long, which is based on 1, years or even millions of years. Therefore, it is difficult for us to find a dividing point.

So, we can sort out a path of human evolution. It is more accurate to use the network here, because evolution does not have a definite direction, and it is not to achieve the goal. Even some mutations will neither hinder the development of organisms nor promote them, but will be preserved. )

Of course, I know that many people don't agree with Darwin's theory of evolution for many reasons, so I won't discuss it here, because what we say doesn't count. Professional things are left to professional people. Evolution is the mainstream recognition of mainstream academic circles, and it is a scientific theory like Newtonian mechanics and Einstein's theory of relativity. Since Darwin's Origin of Species, the theory of evolution has also evolved. Now, when students go to school, they will all learn the Theory of Modern Biological Evolution. Here, the new discoveries and theories of some scientists are integrated into the theory of evolution.

Back to our topic just now, if we make a positioning for human beings, that is, biological classification, people should belong to mammals, primates, hominids and genera.

There are actually many other races that belong to the genus Homo, but only Homo sapiens is left on the earth at present. Of course, there is a rumor on the Internet that "people are monkeys", which is actually a misunderstanding of the theory of evolution. In fact, people really have nothing to do with monkeys, but they are close relatives with orangutans.

how did that man evolve?

Scientists have been studying this problem through the combination of archaeology and molecular anthropology. Objectively speaking, scientists have indeed discovered a lot, but at the same time, when they know more, they find that they know less. Therefore, there are actually a lot of unresolved questions about the evolution of human beings. Let's just talk about the current situation.

Using molecular anthropology, scientists have basically determined that modern humans are descendants of Homo sapiens and originated in early Africa. This conclusion mainly comes from the study of Y staining of different men and mitochondrial DNA of women all over the world.

through molecular anthropology, we can also know what the route of human migration is like.

The people excavated from our country, such as Beijingers, Lantian people and Yuanmou people, are actually Homo erectus. They are not our ancestors, but our ancestors or other anthropoid species came to China to drive these Homo erectus away.

The earliest human species were actually homo habilis. They were already very good at using shopping tools, and their survival time was about 2 million years ago. After homo habilis, it was the craftsman's world, and the craftsman already knew how to use "fire", and then there was Homo erectus ...

Before homo habilis, the current archaeological evidence found that Australopithecus was able to walk upright, and the walking speed was already very fast, reaching a speed of 1 meter per second. And they lived about 4 million years ago. Australopithecus is also considered to be our direct ancestor. And a little earlier than Australopithecus is an ape, which lived about 5 million years ago. Apes can actually start walking on their own. And these are the conditions of various species of hominid.

Finally, let's sum up that it is difficult for us to determine where the first "human" came from, because evolution has a long span and there is no direction. Just like branches, several mutants of the same species may exist at the same time. The definition of "person" itself is difficult to quantify, so it is impossible to determine. According to the current molecular anthropology, human beings originated in Africa.