Because it's easier than walking on four. That's the basic finding of a study conducted by a team of researchers that included University of Arizona anthropologist David Raichlen. Its findings appear ...

The chimp with the most human-like gait and body type walked upright more efficiently than he knuckle-walked a finding that study co-author Herman Pontzer calls a snapshot of how this evolution may ...

Researchers at the University of College London recently undertook a massive study to better understand chimps. The team analyzed data from fecal samples of 828 wild chimpanzees across 30 populations, ...

The oldest distinguishing feature between humans and our ape cousins is our ability to walk on two legs—a trait known as bipedalism. Among mammals, only humans and our ancestors perform this atypical ...

A study on savannah-living chimpanzees suggests the need to move safely on thin tree branches could explain why early hominins that could walk upright kept their tree-climbing adaptations It’s hard to ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: curioustiger/Getty Images Difficult births are not unique to humans, a new analysis of ...

WASHINGTON >> Bipedal locomotion — walking upright on two legs — is a fundamental trait underpinning humankind’s success. Scientists have now identified two innovations that occurred long ago in the ...

In the 1970s, a chimpanzee named Oliver gained fame for looking and acting remarkably human. From upright walking to unusual facial features, he challenged what we thought we knew about evolution.

Picture a baby chimp clinging to its mother's back, wide eyes taking in everything around it. Just like human babies, these little ones start life completely helpless, relying on their mom for ...

Difficult births are not unique to humans, a new analysis of chimpanzee pelvic bones has revealed. The findings suggest that complicated births may not have arisen in humans as a trade-off between our ...