It appears that when our human ancestors migrated out of Africa around 60,000 years ago, they weren't concerned about keeping sexual relations within the species. Scientists have found that most modern Europeans and Asians have between 1 and 4 percent Neanderthal DNA, a remnant of these long-ago rendezvous. In fact, most people living outside of Africa carry a bit of Neanderthal in their genes. (People indigenous to sub-Saharan Africa do not have the Neanderthal DNA, as they did not migrate to the Eurasian landmass.)
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Key Facts In This Video
It's thought that humans first encountered Neanderthals when they migrated from Africa to the Eurasian landmass about 60,000 years ago. 00:27
Research has shown that between 1 and 4 percent of European and Asian human DNA is actually Neanderthal DNA. 01:31
Human pubic lice is very similar to the species of public lice that lives on gorillas. 02:35
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