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 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, ...

Looking back at human history, there emerges a scene where beings that once walked on four legs suddenly rose up and stood on two feet. Scholars evaluate this change as a decisive turning point that ...

Scientists may have cracked the case of whether a seven-million-year-old fossil could walk upright. A new study found strong anatomical evidence that Sahelanthropus tchadensis was bipedal, including a ...

In 2001, researchers unearthed a partial fossil leg bone and two forearm bones in the central African nation of Chad. Those fossils come from the earliest known hominid, which lived around 7 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 ...

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 ...

The ancestors of humans may have been walking on two legs by about 7 million years ago – a million years earlier than had been thought. But the finding, which comes from analysing a damaged thigh bone ...

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 ...

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 ...