Five million years of slugging it out with fists has left its mark on the human face, scientists from the University of Utah believe. Evidence suggests it evolved to minimise damage from altercations after our ancient ancestors learned how to throw a punch.
Researchers studied the bone structure of australopiths, ape-like bipeds living 4 to 5 million years ago which predated the modern human primate family Homo. They found that australopith faces and jaws were strongest in just those areas most likely to receive a blow from a fist.
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