Posted: Nov 15, 2010 11:40 am
Peter Brown wrote:Popular theory states that Homo sapiens migrated out of Africa about 60,000 years ago, at which point modern humans quickly replaced early human species such as Homo erectus and Homo neanderthalensis across the world.
I understand 60,000 years ago was too late as the geographical conditions formed a barrier to migration. The correct date was about 100,000 years for the wave that populated the rest of the world, but there was at least one earlier wave that didn’t survive as they got caught going north when the climate changed to desert.
What barrier to migration?
Do you have a source to confirm this?