A closer look at bats' wings (IMAGE) USDA Forest Service - Northern Research Station Caption This photograph of a bat's left wing illustrates wing structure and shows the collagen fibers that Forest Service scientist Sybill Amelon and her colleagues believe may be the key to identifying individual bats. Credit The image was used as Figure 1 in their study, 'Bat wing biometrics: using collagen-elastin bundles in bat wings as a unique individual identifier.' 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.