The World Before UsThe story of us, told for the first time with its full cast of characters 50,000 years ago, we were not the only species of human in the world. There were at least four others, including the Neanderthals, Homo floresiensis, Homo luzonesis and the Denisovans. At the forefront of the latter's ground breaking discovery was Oxford Professor Tom Higham. In The World Before Us, he explains the scientific and technological advancements in radiocarbon dating