Fossil hunters in Ethiopia have unearthed an ancient skull which they say could be a "missing link" between Homo erectus and modern people.
The cranium was found in two pieces and is believed by its discoverers to be between 500,000 and 250,000 years old.
The project's director, Dr Sileshi Semaw, said the fossilised specimen came from "a very significant time" in human evolutionary history.
It was found at Gawis in Ethiopia's north-eastern Afar region.
Also more at Nat. Geo.