Here at last we have some incontrovertible facts. By 600,000 years ago, when Heidelberg Man came onto the scene and Peking Man ruled the roost at Zhoukoudian, there were definitely different species of Homo in the Eastern and Western parts of the Old World: in the East the small-brained Homo erectus and in the West the larger-brained Homo antecessor and Heidelberg Man.14
