image
Tubular Glass Sponge
Habitat shot with a beautiful tubular glass sponge inside the crevice seen off southern Puerto Rico at a depth of 440 meters (1,444 feet) during Exploration of Deepwater Habitats off Puerto Rico and the U.S. Virgin Islands for Biotechnology Potential.
Credit

Image courtesy of Exploration of Deepwater Habitats off Puerto Rico and the U.S. Virgin Islands for Biotechnology Potential.