The mystery of Neanderthal DNA absence in our genome
Have you ever wondered why we don’t have any reminders of the common roots with Neanderthals in our genome? Researchers have found why.
Modern humans are separated from our ancestors, Neanderthals with a good half of million years.
Neanderthals were tough guys, who had one goal in life – to survive. They did not have many interests in life and had to exist in the cold Eurasia climate. These unbearable for modern people conditions, gave our ancestors large chests, very strong hands, and big skulls.
At the other continent, in Africa, first people looked differently. They had small skulls with shorter faces, slender limbs, and a big chin.
After a while, Neanderthals were tired to live in a constant cold, or by some other reasons, they came to their “friends” in Africa. Both species interbred with each other, and we have received the humans that look like us nowadays.
The new studies that both came up with the same idea at one time, suggest that the main reason why we didn’t keep the traces of our ancestors in the blood is hidden in the sizes of our population. Of course, it is different from the population of Neanderthals.
The main principle of the genetics of population is that the natural selection is not so effective if there is small population.
And Neanderthals lived in the small population for many hundreds of thousands years, mainly, because they have very bad conditions for life.
That is why that were inbred more than us, modern people.