Using this information, the researchers were able to hypothesise that there were four main stages that got the Homo genus to where it is today. The first stage occurred hundreds of thousands of years ago, when our hominid ancestors began to migrate out of Africa. The second stage was the evolution of Neanderthals, while the third stage brought about the Atapuerca humans, who finally evolved into our modern body shape.

Great share. I find this stuff infinitely interesting!