Stuart Auld, University of Stirling (IMAGE) University of Stirling Caption This is Dr. Stuart Auld of the University of Stirling's Faculty of Natural Sciences. Credit University of Stirling 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.