A recently discovered bone, reportedly the size of a dime, has shed new light on human evolution. The finding may be linked to the discovery of a million-year-old skull and could potentially rewrite the story of human origins, with some research suggesting a possible connection to china and a newly identified human ancestor. The discovery has also led to various other claims, including the possibility of neanderthals producing human speech and the emergence of humanlike brains 1.7 million years ago.