Neanderthal Family (IMAGE) University of Colorado at Boulder Caption A new study involving the University of Colorado Boulder indicates Neanderthals had achieved continuous control of fire by roughly 400,000 years ago. Credit JPL/NASA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.