Scientists uncover fossils suggesting Sahelanthropus tchadensis, a 7-million-year-old ancestor, could walk upright. Could ...

Looking back at human history, there emerges a scene where beings that once walked on four legs suddenly rose up and stood on ...

A seven-million-year-old fossil may mark the moment our ancestors first stood up and walked.

The way Sahelanthropus tchadensis moved has long been debated. The discovery of a small bump on the front of the thigh bone ...

Scientists may have cracked the case of whether a seven-million-year-old fossil could walk upright. A new study found strong ...

A seven-million-year-old skull found in Chad sits at the center of a long argument about human origins. The species, ...

A new analysis of these primordial bones offers evidence that Sahelanthropus was our first known ancestor to regularly walk on two feet, a sign that bipedalism evolved early in our lineage.

Scientists have unearthed the remains of Sahelanthropus tchadensis, potentially one of our earliest ancestors. A new analysis ...

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 ...

Scientists argue ape-like Sahelanthropus tchadensis that lived in Africa 7m years ago is best contender but more fossils are needed ...

New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.

It's considered one of the most decisive steps in human evolution. Now, scientists believe they have pinpointed when our ...