A group of anthropologists’ new analysis offers powerful evidence that Sahelanthropus tchadensis—a species discovered in the early 2000s—was indeed bipedal by uncovering a feature found only in ...

WASHINGTON (Reuters) -Bipedal locomotion - walking upright on two legs - is a fundamental trait underpinning humankind's success. Scientists now have identified two innovations that occurred long ago ...

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 ...