Ancient bone tools discovered in East Africa, date back 1.5 million years

Scientists have made an important discovery in Olduvai Gorge, Tanzania. They found ancient bone tools that are over a million years older than any previously known bone tools. This finding changes what we know about early human technology. The tools, made from large mammal bones, date to about 1.5 million years ago. Until now, the oldest bone tools were linked to Homo erectus, a later human species. This discovery suggests that Homo habilis, one of the earliest human species, may have had the skills to make these tools. The researchers, led by Ignacio de la Torre, published their findings in the journal Nature. They note that the new tools show a level of complexity in technology that was not previously recognized for this time period. Earlier bone artifacts were found just on the surface, making dating them difficult. The team believes these tools may have helped bridge the gap between the Oldowan tool culture and the more advanced Acheulian period. The Acheulian period is known for its sophisticated stone tools, including handaxes. The discovery suggests that early humans were capable of adapting techniques to different materials. The bone tools were produced using similar techniques to those used for stone, indicating advanced cognitive skills for that time. Unfortunately, it is challenging to determine exactly how these ancient bone tools were used. Unlike stone tools, bones do not often carry wear patterns that give clues about their functions. However, the researchers suggest they may have been used for heavy tasks like butchering animals. Overall, this research highlights the complexity of human technology and cognitive development much earlier than previously thought.