For years we have believed that woolly mammoths were herded over the cliffs at Ouaisné to fall their deaths and provide food for Neanderthal Man. But that theory, developed forty years ago, is being re-examined by the Ice Age Jersey archaeologists using new technology. Dr Matt Pope explains to Alastair Layzell why he’s keeping an open mind about the world-famous site of La Cotte de St Brelade…