A study has shown men hit hardest when striking downwards and the blows of a taller man are more powerful than the thumps of a short man.
In evolutionary terms, that makes them more useful for women, said researcher Dr David Carrier.
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He added: ‘From the perspective of sexual selection theory, women are attracted to powerful males, not because powerful males can beat them up, but because powerful males can protect them and their children from other males.’
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