A big difference between humans and other apes is the ability to stride easily on two feet. A new analysis of fossil bones shows that adaptations for bipedal walking go back 7 million years. Walking ...

Figuring out precisely when and why the early hominins transitioned from an arboreal lifestyle to habitual bipedalism remains a mystery in palaeoanthropology. Although many early hominin species ...

Walking on two legs is a rare and fascinating ability in the animal kingdom, observed across birds, mammals, and even small rodents. From waddling penguins to hopping kangaroos, these creatures have ...

Walking around upright on two feet is something no other primate does routinely. It seems to be one of the earliest major shifts in the evolutionary path that eventually led to us, modern humans. But ...