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By Wellford Wilms $25.00
Marcia Alesan Dawkins $32.01
Mohd Khomaini Bin Mohd Sidik (CC BY 2.0)
Have we humans been getting dumber since we put down the hunting spear and picked up the trowel? Gerald Crabtree, a geneticist at Stanford University, believes so.
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Posted on Aug 3, 2015
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