Ants Running on a Bridge (IMAGE) CNRS Caption Ants running on a bridge. Credit Emmanuel PERRIN/CRCA/CNRS Photothèque Usage Restrictions May only be used with proper credit and caption. 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.