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 ...

Walking on two legs has long been considered a milestone in human evolution and one of our most defining characteristics. Until now, researchers assumed that the first humans originated in Africa and ...

One of the most fascinating periods in the evolution of the human lineage is the appearance of the first ancestors capable of bipedalism. Knowing the type of locomotion used by many fossil ...

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 ...

Recent discoveries have suggested that tool-making, an indicator of intelligence, was practiced by pre-human species millions of years prior to the evolution of Homo sapiens. This revelation has the ...

Harvard scientists have discovered new evolutionary changes in pelvic structure that allowed the first humans to walk upright on two legs. The August study published in the journal Nature reveals that ...

A big difference between humans and other apes is the ability to stride easily around on two feet, with our bodies vertical. Now, a new analysis of some fossil bones shows that adaptations for bipedal ...

Archaeologists working in Kenya found the footprints of two distinct human ancestors preserved in the fossilized mud of an ancient lake — walking side by side. Near a lake in Kenya, researchers have ...