Whether for cooking, heating, as a light source or for making tools -- it is assumed that fire was essential for the survival of people in the Ice Age. However, it is puzzling that hardly any well-preserved evidence of fireplaces from the coldest period of the Ice Age in Europe has been found so far . A group of scientists has now been able to shed some light on the mystery of Ice Age fire. Their analysis of three hearths at a prehistoric site in Ukraine shows that people of the last Ice Age built different types of hearths and used mainly wood, but possibly also bones and fat, to fuel their fires. ...read more read less