Human ancestors may have been using tools tools as early as three-million years ago – that's a half-million years earlier than previously believed. The announcement is based on an analysis of hand bones belonging to Australopithecus africanus published in Thursday's issue of Science.
More from Gizmodo
Trent Reznor and Atticus Ross Win an Emmy for Watchmen, Coming One Step Closer to the Broodiest EGOT Ever
Dances with Peeps
Many primates use tools. Is the difference that the these tools are shaped?