I first worked at the Museum in 1969-1970, but joined the permanent staff in 1973, where I'm now a Research Leader in Human Origins. My early research was on the relationship of Neanderthals and early modern humans in Europe, but through my work on the Recent African Origin model for modern human origins, I now collaborate with archaeologists, dating specialists, and geneticists in attempting to reconstruct the evolution of modern humans globally. I've excavated at sites in Britain and abroad, and I directed the Ancient Human Occupation of Britain project from 2001 until it finished in 2013. Now I'm co-director of the follow-up Pathways to Ancient Britain project, as part of our funding from the Calleva Foundation, which has also contributed to the foundation of our new Centre for Human Evolution Research.