Human evolution: our special feet (Introduction)

by David Turell , Friday, May 30, 2025, 17:57 (3 days ago) @ David Turell

First in Erectus:

https://www.wsj.com/edition/resources/documents/print/tSzqN5mQq6ynJFdUa8D2-WSJNewsPaper...

"one of the most unique aspects of our species, he said. What began as a tree branch
gripping organ in a long-dead common ancestor with great apes evolved into something
that can carry us upright for many miles at a time. Our cushioned heels strike the
ground, and an arched sole transfers weight toward the front of our feet, propelling us
forward. Our robust big toes push off into the next step, the final note in an efficient
stride for long-distance locomotion.

***

"Homo erectus, bigger in limbs and brain size than other ancient relatives in our lineage, became one of the longest-lived early human species, persisting from roughly two million years ago until 110,000yearsago. Its modern gait and longer strides may not have been the
secret to Homo erectus longevity as a species a Dartmouth College paleoanthropologist not involved in the study—but it would have helped the species expand its range significantly and in crease the diversity of its diet, ultimately leading it to become cosmopolitan.

***

“'The more territory you have, the more stuff you can munch on, and the more stuff you can munch on, the greater input of energy into the system, which can fuel a growing brain,” he added.'"

Comment: another aspect of our exceptionality. Mobility.