Human faces have evolved to minimise the damage caused by fist fight over millions of years, study finds
Millions of years of fist fights have altered the human face to leave men's jaws more robust than women's, a study has found.
Evidence suggests it evolved to minimise damage from bruising altercations after our ancient ancestors learned how to throw a punch.
Researchers studied the bone structure of australopiths, ape-like bipeds living four to five million years ago that pre-dated 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.
It is a legacy that continues to this day, helping to explain why men's faces are more robust than women's, say the scientists.