<I>Phronima</I> (IMAGE) Duke University Caption <I>Phronima</I> is a crustacean that lives in the twilight zone of the ocean, where there is nowhere to hide from predators. In addition to being nearly transparent, a new study has found that she and other midwater crustaceans carry an anti-reflective optical coating that may be made of living bacteria. At top left is the hollowed out shell of her prey, the salp, which becomes a floating nest to raise her babies, one of which is below her tail. Credit Laura Bagge, Duke University Usage Restrictions please use 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.