Flat- Faced Early Humans

http://news.nationalgeographic.com/news/2012/08/120808-human-evolution-fossils-homo-nature-science-meave-leakey-flat/

Fossils found a few years ago in Lake Turkana, Kenya that date back to less than 2 million years ago show that at least one of our ancestors was flat- faced, meaning little prognathism and less of an ape- like face. The time that this species was alive proves that there were at least two forms of “non- erectus” species living at the same time in the same location.