Nest Fly lLrvae (IMAGE) University of Utah Caption Larvae of parasitic nest flies that infest Darwin's finches in Ecuador's Galapagos Islands are shown. Credit Sarah Knutie, University of Utah Usage Restrictions None 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.