Dan Graur, University of Houston (IMAGE) University of Houston Caption This is Dan Graur, John and Rebecca Moores Professor in the Department of Biology and Biochemistry at the University of Houston. Credit University of Houston 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.