Screenshot of iPhone lock screen, featuring an obsidian hand axe on a black background with the date Fri Nov 28 and time 11:50 in a bright green color

My new lock screen wallpaper:
Lower Paleolithic 1.2-million-year-old obsidian hand axe made by unknown hominin at Simbiro III (Melka Kunture, Upper Awash Valley, Ethiopia)

#acheulean #lithics #paleoanthropoly