A Bird in the Net (IMAGE) University of Utah Caption University of Utah biologist Jen Koop captures a bird in a net in the Galapagos Islands off Ecuador. Koop and other researchers used such nets to capture finches -- the birds studied by Charles Darwin -- and determine they develop antibodies when exposed to two invading parasites, the pox virus and the nest fly. Credit Sarah Huber, 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.