New Analysis of Human Expansion
[QUOTE]A new, comprehensive review of humans' anthropological and genetic records gives the most up-to-date story of the "Out of Africa" expansion that occurred about 45,000 to 60,000 years ago.
This expansion, detailed by three Stanford geneticists, had a dramatic effect on human genetic diversity, which persists in present-day populations. As a small group of modern humans migrated out of Africa into Eurasia and the Americas, their genetic diversity was substantially reduced ...[/QUOTE]
[url=http://www.eurekalert.org/pub_releases/2012-10/su-nsa102212.php]New Stanford analysis provides fuller picture of human expansion from Africa[/url]