There is no one on the earth. How did the first man come?

We know that all creatures on the earth evolved from primitive life, from small reptiles to large reptiles, such as small insects and big dinosaurs, which are the results of biological evolution.

Due to many reasons and changes of the earth, we can know that after dinosaurs were extinct by asteroids, small mammals ushered in opportunities for development. Throughout the development of biology, small mammals at that time were similar to mice today in size and appearance, but with the passage of time, they evolved into primates, laying the foundation for the birth of human beings.

Humans have evolved, and since Darwin put forward this view, it has been ridiculed by some people. However, the pace of science will not stop because some people laugh at it. The development of evolution is not what it was in Darwin's time.

Science has proved that human ancestors were apes, but due to long-term natural selection and environmental changes, apes formed various species, among which the best Australopithecus embarked on the "adult road", while other chimpanzees and gorillas could not become human beings.

Evolution is always a long process, not to say that Australopithecus all became today's human overnight, but also evolved day by day. From the present point of view, it is difficult to distinguish Australopithecus from modern people, just like comparing saplings with big trees.

The purpose of biological evolution is to better adapt to the environment. We know that dinosaurs are the overlord of the earth, but dinosaurs at the top of the food chain have no motivation and desire to evolve, which eventually leads to extinction. In the final analysis, the emergence of human beings is also the result of interaction with the earth's environment, so human beings began to dominate the earth.

As for how the first man came, it's like asking whether there was a chicken or an egg first. The answer to this question is that the egg comes first. Because the eggs hatched by the ancestors of chickens are more and more like chickens, the eggs hatched by the ancestors of chickens are more and more like chickens. Finally, one day, a species very similar to the modern chicken came out of the eggshell, and the egg was produced at that time, so was the history of human birth.