Painted Turtle Shell (IMAGE) Washington University School of Medicine Caption The western painted turtle is known for distinctive red markings on the underside of its shell. Credit Tracey Haynes Photographs, <a target="_Blank"href="http://traceyhaynes.com">traceyhaynes.com</a> Usage Restrictions Credit to Tracey Haynes Photographs, <a target="_Blank"href="http://traceyhaynes.com">traceyhaynes.com</a> 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.