Dartmouth Bat-Katydid Study (IMAGE) Dartmouth College Caption A Neotropical bat eats a katydid during a study that provides evidence that sensory differences can influence how animals evolve to specialize on different resources in response to competition. Credit Marco Tschapka Usage Restrictions Credit Marco Tschapka 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.