It’s not easy standing on two legs. Humans, who are fairly good at it, start crawling on four limbs, then have an entire developmental stage named after how wobbly they are when walking. Like toddlers, bipedal robots are in an intermediate stage, with some stunning success and comical failures. This week, the Institute for Human and Machine Cognition (IHMC) tested the ability of a Boston Dynamics built Atlas robot to balance on one leg. It worked!