What may be the earliest-known human ancestor, an ape-man called Sahelanthropus tchadensis who lived in Africa roughly 7 million years ago, walked upright for much of the time, according to a new ...

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 reconstruction of Sahelanthropus tchadensis. (CREDIT: dctim1/Flickr) A seven-million-year-old skull found in Chad sits at the ...

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 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 ...

The acquisition of bipedalism is considered to be a decisive step in human evolution. Nevertheless, there is no consensus on its modalities and age, notably due to the lack of fossil remains. A ...

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 ...

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 ...

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 ...

A new report challenges the theory that Sahelanthropus tchadensis, a hominid that lived more than 6 million years ago, was our earliest known human ancestor. French paleontologists uncovered a ...