A 1.4-million-year-old bone handaxe from Konso, Ethiopia, shows advanced tool technology in the early Acheulean

Read more by Katsuhiro Sano, Yonas Beyene, Shigehiro Katoh, Daisuke Koyabu, Hideki Endo, Tomohiko Sasaki, Berhane Asfaw, and Gen Suwa.

Published on PNAS. 4 August 2020