Evolution's past is modern human's present: DNA evidence of ancient interbreeding inside Africa

That seems to be the takeaway from new research that concludes "archaic" humans, somewhere in Africa during the last 20-60 thousand years, interbred with anatomically modern humans and transferred small amounts of genetic material to their offspring who are alive today. University of Arizona geneticist Michael Hammer and a team of evolutionary biologists, geneticists and mathematicians report the finding in today's Proceedings of the National Academy of Sciences.

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