In the journal Nature, three separate teams of geneticists survey DNA collected from cultures around the globe, many for the first time, and conclude that all non-Africans today trace their ancestry to a single population emerging from Africa between 50,000 and 80,000 years ago.
鈥淚 think all three studies are basically saying the same thing,鈥� said Joshua M. Akey of the 糖心原创, who wrote 聽accompanying the new work. 鈥淲e know there were multiple dispersals out of Africa, but we can trace our ancestry back to a single one.鈥�