Sea slug (IMAGE) University of Florida Caption A species of sea slug called Aplysia (bottom) squirts a purple ink to ward off predators in this close-up view by Wertheim UF Scripps Institute scientists. Researchers used the sea slug to examine how neurons store memory. The slug's neurons are gigantic compared with humans, making them easier to study. Credit Abhishek Sadhu Usage Restrictions None 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.