Scientists solve the evolutionary mystery of how humans came to walk upright

Scientists solve the evolutionary mystery of how humans came to walk upright

The pelvis is often called the keystone of upright movement. It helps explain how human ancestors left life on all fours behind. Yet the “how” has stayed fuzzy for decades. A new Nature study led by Harvard University researchers now points to two major genetic and developmental changes that reshaped the pelvis into a structure built for walking on two legs. The work was led by Terence Capellini, professor and chair of Harvard’s Department of Hu…