"Alastair Key of the University of Kent and his colleagues experimented with raw materials employed by toolmaking hominins who lived in Tanzania’s Olduvai Gorge, and found that our human ancestors were making complex decisions about tool design as early as 1.8 million years ago"
Quelle: https://www.archaeology.org/news/8352-2 ... tone-tools
https://royalsocietypublishing.org/doi/ ... .2019.0377