It’s considered to be one of the most decisive steps in human evolution. Now, scientists believe they have pinpointed when our ancestors made the transition from walking on all fours to standing on ...

In 2001, researchers unearthed a scattering of fossils beneath the windswept dunes of the Djurab Desert of northern Chad. The remains were later identified as belonging to an extinct species, ...

Add Yahoo as a preferred source to see more of our stories on Google. A controversial hominid that lived 7 million years ago may have walked on two legs after all, according to a new analysis of its ...

Add Yahoo as a preferred source to see more of our stories on Google. A reconstruction of Sahelanthropus tchadensis. (CREDIT: dctim1/Flickr) A seven-million-year-old skull found in Chad sits at the ...

Crania, ulnae, and femora of (left to right): a chimpanzee, Sahelanthropus, and Australopithecus. (Courtesy of Scott Williams/NYU and Jason Heaton/University of Alabama Birmingham.) (CN) — The ability ...

In recent decades, scientists have debated whether a seven-million-year-old fossil was bipedal—a trait that would make it the oldest human ancestor. A new analysis by a team of anthropologists offers ...

Hominins may have transitioned to walking on two feet over 7 million years ago.

Walking on two legs has long been considered a milestone in human evolution and one of our most defining characteristics. Until now, researchers assumed that the first humans originated in Africa and ...