Bat Baby Talk (IMAGE) Smithsonian Tropical Research Institute Caption Mother-pup pair of the greater sac-winged bat, Saccopteryx bilineata, in their daytime roost. The pup (dark fur color) is holding on to the mother's belly (light fur color). Credit Michael Stifter 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.