Automated Analysis of Hydra Behavior (VIDEO) Columbia University This video is under embargo. Please login to access this video. Caption When researchers manipulated Hydra's environmental conditions, they found that six common behaviors, captured in the above movie, hardly changed at all. Credit Yuste Lab/Columbia University 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.