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Did Fist-Fighting Shape The Human Hand?
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Key Facts In This Video
Compared to gorillas, humans have shorter palms and fingers, and longer, stronger thumbs that allow for more manual dexterity. 00:39
Humans are the only animals that form a clenched fist to fight. 01:16
Because it delivers force with a smaller concentrated surface area, a punch does more damage than a slap or a chop. 01:47