http://en.wikipedia.org/wiki/Olduvai_Gorge
http://www.pbs.org/wgbh/aso/databank/entries/do59le.html
http://www.basecamptanzania.com/NP_OldupaiGorge.htm
http://xpeditiononline.com/09olduvai.html
Article
http://dieoff.org/page125.htm
Videos
http://www.youtube.com/watch?v=vMrPJlt1CY8
http://www.youtube.com/watch?v=umwuqAljFVo&feature=related
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