Prehistoric bone tool cache suggests advanced reasoning in early hominins

Olduvai Gorge in northern Tanzania boasts sediment layers dating back to about 1.8 million years ago. Those layers contain simple stone tools that marked one of the earliest recorded technological transitions. Now, researchers have uncovered a substantial cache of prehistoric bone tools in the same region dating back 1.5 million years. It's the oldest collection of mass-produced bone tools yet known, according to a new paper published in the journal Nature. And while it's still unclear which hominin species crafted the tools, the discovery suggests that our early human ancestors had some advanced reasoning skills a good million years earlier than previously thought. “The tools show evidence that their creators carefully worked the bones, chipping off flakes to create useful shapes," said co-author Renata F. Peters, an archaeologist at University College London. "We were excited to find these bone tools from such an early timeframe. It means that human ancestors were capable of transfe ... Read full article.