A mysterious population of ancient humans lived in West Africa about half a million years ago, and scientists believe their genes still live on in people today.
One of the features that distinguishes modern humans from Neandertals is a globular shape of the braincase.This"archaic ghost population" appears to have diverged from modern humans before Neanderthals split off from the family tree, according to the research published by the"Science Advances" journal.The split appeared to have taken place between 360,000 and a million years ago, say the researchers from the University of California, Los Angeles.
They built"genome-wide maps of archaic ancestry" across four West African ethnic populations living in three countries: Nigeria, Sierra Leone and the Gambia. There's a little cave man in all of us: Early human inbreeding Researchers compared 405 genomes of West Africans with Neanderthal and Denisovan genomes, and worked out whether there had been interbreeding among an unknown hominin whose ancestors split off from the human family tree before Neanderthals.
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