We were not alone.
Early reconstruction of the X-Woman.
Where she was found.
The news tonight is that three, er, four (with the Hobbits) fossil human-like beings existed, definitely, on Earth at the same time.
“The Neanderthal and Denisova population history may be roughly twice the length suggested in [the Nature] paper,” said University of Wisconsin — Madison anthropologist John Hawks, who was not involved with this study. “The ancestors [of the Denisovans] might be the original Homo erectus dispersal from Africa.”
DNA taken from this belonging to a young girl was found to be neither from early human nor Neanderthal, and was from a previously unknown species.
The Denisovans were similar in looks to Homo erectus, pictured, a species which dies out more than one million years ago.
Both the Neanderthals and the Denisovans started in Africa but, around the same time, the Neanderthals moved out to the west and into Europe, while the Denisovans headed East.