Did feminization create modern humans?

August 4, 2014 7:48 AM

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Did feminization create modern humans?

Duke University anthropologists have been measuring more than 1,400 ancient and modern skulls, leading them to theorize that modern humans emerged at the same time as a lowering of testosterone levels.

While modern humans appear in the fossil record from around 200,000 years ago, it was only about 50,000 years ago that the creation of art and advanced tools became widespread.

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