Green Turtle (IMAGE) Wildlife Conservation Society Caption WCS researchers examine a green turtle, one of several species afflicted by cancer. Credit Cynthia Lagueux Usage Restrictions One-time usage only. Photo credit required. 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.