Modern Humans Mated With Denisovans Twice

Posted: Mar 19 2018, 7:10am CDT | by , Updated: Mar 19 2018, 10:44am CDT, in News | Technology News

 
Modern Humans Mated With Denisovans Twice
This graphical abstract shows two waves of Denisovan ancestry have shaped present-day humans. Image Credit: Browning et al./Cell

Modern Human Beings underwent Miscegenation with Denisovans in Prehistoric Times

Modern human beings interbred with not only Neanderthals in the past but also with another species which were the Denisovans. The latest data unearthed from the distant past points towards this conclusion.

Genome analysis is the name of the game through which all this information reaches us moderns. There have in fact been two such incidents of mass miscegenation between modern humans and Denisovans in the past.

This evolution has been a much more complex process than it was supposed to be in Darwinian times. The genomes of two modern human strains – the people of Oceania and East Asia – were different and matched those of the Denisovans.

They had Denisovan genes intermixed in their genetic structures. Papuan individuals seem to have such genes as a part of their makeup. The percentage was 5% which is still of significant and seminal importance.

Denisovan ancestry is present in East Asian individuals as well. The scientists studied the genomic sequences from 5600 individuals spread out over Europe, Asia, America, and Oceania. The Denisovan genes were more prevalent among the East Asians than the Papuans.

Many East Asians such as the Han Chinese, Chinese Dai, and the Japanese had Denisovan genes in their internal DNA profiles. The Denisovan samples were found from bones unearthed from the Siberian soil.

The Altai mountains were the real source of these genetic samples. A paper on this was published eight years ago. The miscegenation with Denisovans occurred very quickly after primitive man ventured out of Africa which was the cradle of humanity.

Interbreeding was more common than it was thought to be previously. It seems that besides any hostile encounters between the different strains of humans, there was a great deal of amorous contact as well.

Man is not just known for his warring instincts but also for his capacity to love and be loved in return.

The research paper about this study got published in the journal Cell by scientists of the University of Washington in Seattle.

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