The seven-million-year-old Sahelanthropus tchadensis skull, known as Toumai, viewed from different sides. Image: Didier Descouens/Wikicommons Ten years ago, an international group of anthropologists ...

A blackened, broken leg bone from Earth’s prehistoric past may hold the answer to when early humans diverged from apes and started their own evolutionary path. The fossilized find, first uncovered two ...

The first members of the human lineage lack many features that distinguish us from other primates. Although it has been a difficult quest, we are closer than ever to knowing the mother of us all. Aa ...

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 ...

The seven million year old Sahelanthropus tchadensis was discovered in 2001 in Chad and announced in 2002 as a habitual bipedal hominin species based on an adult distorted cranium. Thus, any ...