Study says near extinction threatened peopleApril 24th, 2008 in Biology /
(AP) -- Human beings may have had a brush with extinction 70,000 years ago, an extensive genetic study suggests. The human population at that time was reduced to small isolated groups in Africa, apparently because of drought, according to an analysis released Thursday.
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"Study says near extinction threatened people." April 24th, 2008. http://phys.org/news128257729.html