WASHINGTON (Reuters) -Bipedal locomotion - walking upright on two legs - is a fundamental trait underpinning humankind's success. Scientists now have identified two innovations that occurred long ago ...

A big difference between humans and other apes is the ability to stride easily around on two feet, with our bodies vertical. Now, a new analysis of some fossil bones shows that adaptations for bipedal ...

An international collaboration study reveals how evolution and locomotion patterns, such as bipedalism, shaped bone structures through proteins present in the bone matrix. The findings of the study, ...

Harvard scientists have discovered new evolutionary changes in pelvic structure that allowed the first humans to walk upright on two legs. The August study published in the journal Nature reveals that ...

Add Yahoo as a preferred source to see more of our stories on Google. One longstanding theory of human bipedalism is that it first developed in our ancient hominid ancestors as a way to more easily ...

Archaeologists working in Kenya found the footprints of two distinct human ancestors preserved in the fossilized mud of an ancient lake — walking side by side. Near a lake in Kenya, researchers have ...