Discovery of 3m-year-old stone tools sparks prehistoric whodunnit

Presence of teeth from extinct hominin challenges view that only members of Homo genus used complex tools. Examples of an Oldowan percussive tool, core and flakes from the Nyayanga site. Photograph: TW Plummer, JS Oliver and EM Finestone/Homa Peninsula Paleoanthropology Project/SWNS – By …