Biohybrid robot jellyfish (IMAGE) California Institute of Technology Caption This time-lapse composite image shows a biohybrid robot jellyfish descending through the three-story tank designed for testing the swimming abilities of the modified creatures. Credit Caltech Usage Restrictions Must credit Caltech License Original 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.