Humanity was born in Africa and then migrated to different parts of the world, according to new studies. There was a mass exodus around 60,000 years ago, as shown by DNA tracing and fossil evidence, but the studies revealed that some migration had occurred even before that period.
In three different studies published in journal Nature earlier this week, researchers tried to trace the origin of human species by studying neglected DNA. According to Boston Globe, this belongs to populations that haven't been studied as much as the large ethnic groups from Europe and Asia.
One Big Expedition Resulted In Human Civilization
The studies concluded that non-African DNA's from all over the world tested were proven that they contain DNA from population coming from African ancestry dated 50,000 to 80,000 years ago.
Joshua M. Akey of the University of Washington said, "I think all three studies are basically saying the same thing. We know there were multiple dispersals out of Africa, but we can trace our ancestry back to a single one."
One of the studies, led by Eske Willerslev of Cambridge University, explained that analysis of genomes of native Australians suggested that Aboriginal people could be the world's oldest civilization outside of Africa.
Where Did Africans Go To?
According to a study entitled "Out of Africa," all of ancient people living in Africa left all at once.
After the great exodus, Africans settled in Papua New Guinea which is south of Australia. In the present days, two percent of the population in Papua New Guinea has traces of Africans that dated 120,000 years ago.
Todd Disotell of New York University said, "The reported hint in Papuans of an earlier migration might actually be due to something else. The analyses in all three papers are very complex."
Africans May be The Ancestors Of Every Human
"As population geneticists, we could spend the next decade arguing about that 2 percent, but in practical terms it doesn't matter," Akey said.
The real point of the study is to trace the ancestors of each civilization around the world. Africa may be the place where Neanderthal and Denisovans interact with the Homo sapiens. With these latest findings, the scientists may soon share the family tree of human civilization.
