Giant Tortoises (IMAGE) PLOS Caption Giant tortoises at the Darwin Station on Isla Santa Cruz in the Galápagos Islands. Credit Photo: Catriona MacCallum Usage Restrictions Please cite the photographer, authors, and PLoS Biology. 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.