Lionfish predation experiment (IMAGE) Smithsonian Tropical Research Institute Caption Hungry lionfish were placed within artificial enclosures designed to simulate natural conditions, with three prey species, to observe their predatory behaviors and diet choices. Credit Smithsonian Tropical Research Institute 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.