A partial skull found in South Africa suggests Homo erectus—an ancestral human species—appeared 100,000 years earlier than previously thought. The new research also shows that H. erectus lived alongside two other hominin species, neither of which were human.
A pinky finger bone, some teeth, and a lower jaw. That’s all the physical evidence we have of the mysterious Denisovans, an extinct group of hominins closely related to the Neanderthals. Remarkable new research offers a physical reconstruction of the Denisovans based on genetic evidence, providing our first potential glimpse of this ancient human species.