This involves the troubling problem that there were indeed early humans, or people close to/similar to Homo sapiens, all over the globe on Earth.

But now this centralized origin and the origin of various places will involve a very, very sensitive question, that is, the origin of different places, does it mean that human beings everywhere are not the same species?

There were two different early theories about the origin of humanity.

First of all, archaeological research has confirmed that there were hominids in different places around the world over a long period of time, such as Neanderthals, Denisovans, etc.

As for the origin of modern humans, two schools have emerged based on archaeological results.

The first is the belief that each region evolved into modern man.

The second is one of them, that is, Homo sapiens eventually evolved into modern humans, while the other races are already extinct.

The current mainstream view is more inclined to the second theory, that is, modern humans are all descendants of Homo sapiens, and the Neanderthals and Denisovans before them are all extinct.

In fact, this conclusion is based on both science and social ethics.

The first theory, the biggest problem, is that if it were to evolve separately, millions of years would actually cause the evolution of humans in different regions to be so different that they would become two different species, so that there would be reproductive isolation.

There is no doubt that there is no reproductive isolation between humans today.

At the same time, the evolution of different regions eventually led to the creation of multiple subspecies of the species.

And there will be huge differences between subspecies, and in fact, human studies of Neanderthals and Homo sapiens can confirm that there are already huge differences.

Here an ethical question arises, if humans are different species, then is it equivalent to supporting the theory of racial superiority from a physiological point of view? Is it tantamount to finding physiological support for genocide?

All previous religious and ethical barriers to humanity will collapse overnight.

In fact, modern research on human genes has shown that the genetic differences of human beings are very, very small, and it is completely impossible to determine their species differences, so human beings are still one species, and there are no other subspecies classification.

Of course, for other early races, the simple explanation is that Homo sapiens eventually won the competition for survival, causing the destruction and disappearance of other subspecies.

Finally, it is worth mentioning that some genetic studies over the years have shown that in fact, those human beings may not really disappear completely, at least there is a part of the Neanderthal gene in the genes of modern humans, that is to say, some Homo sapiens and Neanderthals have common descendants, so Neanderthals have disappeared as an independent species, but some genes have been inherited in Homo sapiens.