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

New Insights Into Human Evolution: The Unique Role of Our Foot's Spring-Like Arch

These Trees Say So Much: Hubbard Brook Experimental Forest in North Woodstock, New Hampshire - New England

Arched footprints preserve the motions of fossil hominin feet

BAREFOOT RESEARCH, March 2020, Blog

Book Review: The Secrets of Our Success by Joseph Henrich

Our Babies, Ourselves: How Biology and Culture Shape the Way We Parent: Meredith F. Small: 9780385483629: : Books

Human evolution - The Telegraph

How did humans evolve to run with shoes or without them? - Quora

Why human feet evolved arches—and what happens if you lack them

Tennis - Page 725 - The Telegraph

Can a Jellyfish Unlock the Secret of Immortality? - The New York Times

Harry Butler honoured and how a scientist fell in love with a fossil - ABC listen

Why are feet shaped the way they are? - Quora

How to Find Arc Length: Formulas and Examples