Carl Wepking (IMAGE) Colorado State University Caption Carl Wepking, the lead author and a postdoctoral fellow in the Department of Biology at CSU, said the findings give him 'pause' due to the widespread use of antibiotics. Credit Michael Strickland, University of Idaho 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.