Cara Wall-Scheffler /The Conversation Think about taking a walk: where you need to go, how fast you need to move to get there, and whether you need to bring something along to carry the results of your errand. Are you going on this walk with someone else? Does walking with a friend change your preparation? If you’re walking with a child, do you remember to bring an extra sweater or a snack? You probably did – because people intuitively vary their plan depending on their current needs and situations. In my research as an anthropologist, I’ve focused on the evolution of human walking and running because I love the flexibility people bring to these behaviors. Humans in all kinds of
