From FOX News:WASHINGTON — Human beings may have had a brush with extinction about 70,000 years ago, an extensive genetic study suggests.
The human population at that time had been gradually reduced to small isolated groups across eastern and southern Africa, apparently because of massive droughts lasting tens of thousands of years, according to an analysis released Thursday.
The report notes that a separate study by researchers at Stanford University estimated the number of early humans may have shrunk as low as 2,000 before numbers began to rapidly expand again in the period known as the Late Stone Age.
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