Bound by Blood (VIDEO) Smithsonian Tropical Research Institute This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Vampire bats moved from captivity at the Smithsonian Tropical Research Institute in Panama back to the wild, stayed together, maintaining social bonds, according to data from proximity sensors. Credit Smithsonian Tropical Research Institute Usage Restrictions for use with this press release 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.