Paul Thomas, University of Adelaide (IMAGE) University of Adelaide Caption This is associate professor Paul Thomas from the University of Adelaide. Credit Photo by Sandra Piltz Usage Restrictions This image is copyright to the University of Adelaide and is only to be used in conjunction with the story 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.