In Memoriam: Lynn Margulis (Introduction)
http://www.physorg.com/news/2011-02-ancient-teeth-modern.html
More dang coincidences. This article implies that H.Sapiens existed in the middle east 200k-400k B.P.
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What is the purpose of living? How about, 'to reduce needless suffering. It seems to me to be a worthy purpose.