FlyCroTug (IMAGE) Stanford University Caption A FlyCroTug with microspines engaged on a roofing tile so that it can pull up a water bottle. Credit Kurt Hickman/Stanford News Service Usage Restrictions Image may only be used with appropriate caption or credit. 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.