Bryan Sykes is a Professor of Human Genetics at the University of Oxford and a Fellow of Wolfson College. He has been involved in a number of high-profile cases dealing with ancient DNA, including those of “Otzi the Iceman,” a well-preserved natural mummy of a man who lived around 3,300 BC and “Cheddar Man,” the remains of a man found in Cheddar Gorge, from approximately 7,150 BC. It is Britain's oldest complete human skeleton. Professor Sykes in best known outside the community of geneticists for his bestselling books on the investigation of human history and pre-history through studies of mitochondrial DNA.