Plate with Bacterial Colonies (IMAGE) University of Exeter Caption Plate with bacterial colonies. Small 'smooth' ones have evolved to lose surface receptor, while 'fuzzy' ones have not Credit Ellinor Alseth Usage Restrictions This image may only be used with reports of this research 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.