Ahana Fernandez Fieldwork (IMAGE) Smithsonian Tropical Research Institute Caption As part of her fieldwork, Fernandez habituated the bats to her presence near their day-roosts, obtaining observations of their natural behaviors and recording their vocalizations in a completely undisturbed environment during months. Credit Ana Endara Usage Restrictions No restrictions. License Public Domain 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.