David Carrier, University of Utah (IMAGE)
Caption
Biology professor David Carrier in his University of Utah lab, where he and his students conducted experiments with cadaver arms showing that a clenched fist reduces strain on metacarpal or palm bones when punching. The findings back Carrier's controversial theory that human hands did not evolve solely for manual dexterity, but also for male-male fistfights over females.
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University of Utah Marketing & Communications
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