People are the only mammals that move on two legs, and we take that for granted. We eagerly wait for our children’s first steps—but how did our ancestors learn this ability? We try to hold our heads high, but at what cost did upright walking come to us?
In the audiobook “First Steps,” paleoanthropologist Jeremy DeSilva explores how unique this seemingly ordinary ability is. Traveling seven million years back, he shows how bipedal walking became the foundation for the development of important human traits: inventing technologies, the desire to study the world, the development of speech, and perhaps the basis for qualities such as compassion, mutual aid, and altruism.