Click Here to Read: Fossils Upend Conventional Wisdom about Evolution of Human Bipedalism For most of human evolution, multiple species with different ways of walking upright coexisted By Jeremy DeSilva in the Scientific American issue of November 1, 2022.

Cast of the “Laetoli footprints” — the earliest known human footprints in the world, on display in the Hall of Human Origins in the Smithsonian Museum of Natural History in Washington, D.C. These footprints are those of Australopithecus afarensis. Image: Tim Evanson.  Public Domain via Wikimedia Commons.