Arched feet didn't evolve to give us a spring in our step – but to keep us upright, scientists say

Experts used to think the arch was a lever to propel the body forward, but now researchers believe it developed to help us walk on two feet

Evolution - The Telegraph

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My Beloved Brontosaurus: On the Road with Old Bones, New Science, and Our Favorite Dinosaurs: Switek, Brian: 9780374534264: : Books

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Human evolution - The Telegraph

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Human evolution - The Telegraph

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Human evolution - The Telegraph

Evolution - The Telegraph