Slug Penetrates Egg Masses' Mucous-Like Barrier (image) Florida Museum of Natural History Share Print E-Mail Caption An Olea hensoni slug, left, feeds on the eggs inside a gelatinous mass laid by an unknown marine invertebrate. The jelly-like mass is generally an effective protection against predators -- but not this slug. Credit Florida Museum photo by Gustav Paulay Usage Restrictions Please credit Gustav Paulay/Florida Museum. Share Print E-Mail 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.