Reid Reimers of SciShow explained how humans evolved from certain ancestral species to have 26 bones reside in the feet. This ...

Tens of thousands of years ago, an ancient people left their possessions in a cave in the Caucasus Mountains of modern-day Russia. Centuries would pass before the site was found again — and a ...

Her upper arm bones are long and sturdy relative to those of modern humans. Laetoli Footprints: prints Whoever left these prints undoubtedly moved forward on two feet, likely with a smooth ...