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Ancient Skulls Show Civilization Rose As Testosterone Fell

Researchers studying ancient human skulls say a testosterone decrease in early humans might have facilitated the rise of modern human behavior.

http://www.wgrz.com/video/3710172374001/1/Ancient-Skulls-Show-Civilization-Rose-As-Testosterone-Fell http://cdn.newslook.com/c3/c33f3ee637647d66c2f620c3bab47948/images/frame_ext.jpg Ancient Skulls Show Civilization Rose As Testosterone Fell Researchers studying ancient human skulls say a testosterone decrease in early humans might have facilitated the rise of modern human behavior. The Washington PostnewslookdelawareUtahscience 02:17

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