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

In the arid landscapes of the Afar region in Ethiopia, a series of bones dating back 3.4 million years could shake up what we ...

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

Human history features a pivotal moment when four-legged beings stood upright on two legs. Scholars regard this shift as the ...

Scientists may have just pushed back the timeline for when our ancestors first started walking upright. A new study suggests ...