Troy Zars, University of Missouri (IMAGE) University of Missouri-Columbia Caption Zars is an associate professor of biological sciences in the College of Arts and Science at MU. Credit University of Missouri Usage Restrictions credit University of Missouri 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.