This was caused by global warming
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Study says near extinction threatened people 70,00 years ago
By RANDOLPH E. SCHMID, AP Science Writer Thu Apr 24, 6:17 PM ET
WASHINGTON - 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.
http://news.yahoo.com/s/ap/20080424/ap_on_sc/close_call;_ylt=Agci1EeUx_.NB4gFgD1dq7Ks0NUE
