Ancient skulls show civilization rose as testosterone fell | www.ajc.com

http://www.ajc.com/news/lifestyles/health/ancient-skulls-show-civilization-rose-testosterone/ngs7Y/?__federated=1

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Enjoy Pooh quotes: A.A. Milne, Winnie-the-Pooh

"To the uneducated an A is just three sticks." 
― A.A. Milne, The World of Winnie-the-Pooh