Watch the skull of our oldest ancestor, 1.8 million years old
Georgia: A 1.8 million year old skull has been found in in Dmanisi, Georgia, in Eastern Europe. The skull is of a homo sapiens. Scientists say the Dmanisi population was most likely an early part
The skull and other remains offer a glimpse of a population of pre-humans of various sizes living at the same time - something that scientists had not seen before for such an ancient era.
This diversity bolsters one of two competing theories about the way our early ancestors evolved, spreading out more like a tree than a bush.
Nearly all of the previous pre-human discoveries have been fragmented bones, scattered over time and locations.