West African Lungfish (IMAGE) University of Chicago Medical Center Caption The West African lungfish represents a new model for studying limb regeneration, providing new insights into the evolution of the trait. Credit Photo courtesy of Camila Guimarães of the Schneider Lab Usage Restrictions May only be used for press regarding this specific research study. All other use requires permission from the researchers. 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.