Becoming Human

A new dating method indicates the stone tools found at Zhoukoudian in China are considerably older than first believed, according to a paper published in the journal Nature this week.  Zhoukoudian, not far from Beijing, then called Peking in the West, is the site of a cave first excavated by Franz Weidenreich starting in the late Twenties and during the decade of the Thirties.  Fossili