When two tribes meet: Watch a pivotal moment in human history (video)
In this captivating video, you can see a recreation of the transitional moment from conflict to cooperation
DNA from an ancient unidentified ancestor was passed down to humans living today
About 15% of these "super-archaic" regions may have been passed down to modern humans
Some Pacific islanders have DNA not linked to any known human ancestor
Researchers have now uncovered the DNA of a previously unknown group of hominids