Rubinoff with sea lemon (IMAGE) University of California - Davis Caption Study lead author Ben Rubinoff holds a sea lemon, a predatory nudibranch that eats sponges, at Tomales Bay in Northern California. Credit Courtesy Ben Rubinoff Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.