Are cavemen, Yuanmou people or Lantian people the ancestors of China people?

Cavemen, Lantian people and Yuanmou people all belong to Homo erectus, which are early branches of human beings, but they have no obvious relationship with modern people. China and Europe both originated in Africa, and modern people, as a branch of mankind, only appeared 654.38 million years ago.

Cavemen, Lantian people and Yuanmou people are all ancient races hundreds of thousands to more than one million years ago. They are said to be a branch of human beings mainly because they also have behaviors such as making tools and using flames, and their body structure is similar to that of modern humans. They have completely adapted to the way of walking upright, and their hands and feet are basically completely divided. The lower limbs are mainly used to support the body and run, and the upper limbs are completely divided to undertake fine activities such as making tools. The difference is that their spine is not as straight as that of modern people, and the physiological curvature of the spine makes the upper body tilt to the ground, so the structure of lower limbs is slightly different from that of modern people, and the volume of cranial cavity and the shape of skull and mandible are also quite different from modern people.

At least from the structural point of view, they are very different from modern people, so they can't be identified as the ancestors of modern people, and their genes can't be confirmed. So the conclusion now is that it is impossible to prove how much they have to do with modern China people. On the contrary, genetic evidence proves that all human beings in the world originated from Africa, which is based on highly heritable Y chromosome and mitochondrial chromosome.

Because of genetic evidence, it is believed that human beings originated in Africa twice, and cavemen were the first ancients to leave Africa. Under the pressure of survival competition, they kept exploring new places to live until they reached Europe and Asia. No such ancient human fossils have been unearthed in America, and the earliest human footprint in America can only be traced back to 1.3- 1.5 million years ago.

The second journey out of Africa is the history of modern human migration. 10 million years ago, due to the pressure of survival, they began to migrate to places outside Africa, adapt to different environments, and form human groups with different characteristics such as skin color. However, genes are inextricably linked, and Y chromosome Adam and mitochondrial Eve are the best proof. Scientists use the mutation rate of genetic molecules to describe the history of human population differentiation and evolution after the second trip out of Africa. Relatively speaking, Africans have some marks.

There are no fossils of ancient people in America, which shows that human beings did not originate alone. This statement ignores a basic reality. Originally not from the same source, species that evolved separately will form reproductive isolation, but now humans all over the world can combine to have children.