NEW YORK — Stone tools and other items from ancient sites in Kenya give a glimpse at the emergence of some key human behaviours, perhaps including a building of relationships with distant neighbours, new research says. The tools are much smaller and more sophisticated than the older, teardrop-shaped stone tools found in the same area in southern Kenya. Some were made of a volcanic rock, obsidian, that didn’t come from the area, meaning the toolmakers travelled miles to get it. The newer tool style, known from other sites as Middle Stone Age technology, produced smaller stone flakes for uses like scraping and points on projectiles. The older stone tools are from 1.2 million to about 500,000 years ago.

Source: National Post March 15, 2018 18:11 UTC