Cuba's Twilight Zone Reefs Expedition (IMAGE) Florida Atlantic University Caption This is a giant vase sponge with hanging garden of green algae. Credit Cuba's Twilight Zone Reefs Expedition/CIOERT at FAU Harbor Branch. Usage Restrictions Credit: Cuba's Twilight Zone Reefs Expedition/CIOERT at FAU Harbor Branch 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.