Ancient Skulls Found in China Could Belong to an Unknown Human Species

Scientists have discovered two partial human skulls in central China that they say could potentially belong to an unknown archaic human species.
The skulls are 105,000 to 125,000 years old, and they contain a unique mix of modern human and Neanderthal features. Excitingly, they could be the key to filling in some of the missing pieces of the human family tree in east Asia.