Lower Testosterone, Feminine Skull Features Helped Civilize Ancient Humans

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A study examining more than 1,400 ancient and modern human skulls suggests how lowered testosterone levels and subsequent softer — more feminine — skull features accompanied agreeableness, cooperation, and the “origins of behavioral modernity.”  Homo sapiens appeared in the fossil record about 200,000 years ago. But widespread evidence of modern behavior — symbolic art and […]

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