Archaeologist João Zilhão explains how Oase-1 may have died

With over a quarter of a century of active archaeological research under his belt, Professor João Zilhão has crawled, dived, and climbed throughout some of the most spectacular caves in Europe.

As one of the world's foremost experts on the late Neanderthals and early modern humans Professor Zilhão has an intriguing theory about how and why Romania became home to the oldest modern human fossils found in Europe.