Posted by Eric Niiler Fri Sep 10, 2010 08:47 AM ET | 0
As more athletes try gene therapy to boost their performances, scientists step up efforts to detect the cheating. Read more

Posted Tue Jun 30, 2009 09:23 PM ET
Around 80,000 years ago, modern humans came up with an important invention that may have forever changed the course of human history and sealed the fate of Neanderthals: projectile weapons. Read more

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