This tiny bump on an ancient thigh bone has become a big deal for anyone trying to pin down when the human story truly began.

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Aside from our big brains, the trait that most distinguishes humans from other animals is our ability to walk fully upright on two ...

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 ...

New international study reveals how evolution and locomotion patterns, such as bipedalism, shaped bone structures through proteins present in the bone matrix. A new international study sheds light on ...

A controversial hominid that lived 7 million years ago may have walked on two legs after all, according to a new analysis of its fossilized bones. Much of the debate centers on whether this primate ...

This image compares S. tchadensis fossils (TM 266) to a chimpanzee and a human. A recent study has suggested that Sahelanthropus tchadensis, an ape-like species that lived in Africa seven million ...

More than two decades ago, scientists digging in Central Africa unearthed the 7-million-year-old remains of what may be one of the earliest known human ancestors. Only a few fossils were recovered ...

Walking around upright on two feet is something no other primate does routinely. It seems to be one of the earliest major shifts in the evolutionary path that eventually led to us, modern humans. But ...

In the early 2000s, researchers uncovered primate bones that were approximately seven million years old in Chad’s Djurab Desert. Since then, the fossils, which belonged to the extinct species ...