Scientists have announced the discovery of fossils which push the dawn of tool use in hominids back a full million years. That's Australopithecene territory right there, and represents the first conclusive evidence of that species using tools and eating meat. For a long time the conventional wisdom said our body plan got sorted out with the Australopithecene, with intelligence coming only with the rise of Homo (shaddup, Ron). Now that will all have to be re-thought.