Men developed thicker foreheads and jaws due to fighting over women

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Men evolved manly jawlines and thick brows because they used to fight for women in the past, claim anthropologists

Winning a mate used to depend only on physical prowess and men with the strongest jawline and thickest skulls were better able to survive onslaughts from love rivals.

That meant that over time all men developed thicker bones in the jaws, around the eyes and on the forehead than women.

They also developed a greater proportion of muscle to fat than women and became taller than women, said the study

Dr David Puts, whose findings are published in Evolution and Human Behaviour, said unlike many animal species men and women are similarly sized although men develop more muscle and women more fat....

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