Snail (IMAGE) University of Vienna Caption The carnivorous sea slugs are known for their poisoning mechanism, which helps the animals catch and defend their prey such as fish or shells. Credit © Markus Muttenthaler Usage Restrictions The 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.