Archaic H. sapiens – H. sapiens sapiens / Testosterone

A composite image shows the facial differences between an ancient modern human (Archaic Homo Sapiens) with heavy brows and a large upper face and the more recent modern human (Homo sapiens) who has rounder features and a much less prominent brow. The prominence of these features can be directly traced to the influence (reduction) of the hormone testosterone. Photo Credit: Robert Cieri, University of Utah

2238323698Archaic vs Modern

Read more: http://www.zmescience.com/science/archaeology/civilization-testosterone-skull-04082014/#ixzz3eYaNNQr0

“It is important to note that lower testosterone is associated with tolerance and cooperation in bonobos and chimpanzees, and with less aggression in humans. It seems very plausible that as humans started to group up in larger and more interconnected settlements,

they needed to find less violent ways to sort out their problems – and in the long run, the non-violent path won.”

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