Feather star Comanthus alternans sitting on sponge Spongia in the backlight of the sun, Pacific Ocean, Great Barrier Reef, Unesco World Heritage Site, Australia, Oceania, by Norbert Probst Stock Photo - Afloimages
Feather star (Comanthus alternans) sitting on sponge (Spongia) in the backlight of the sun, Pacific Ocean, Great Barrier Reef, Unesco World Heritage Site, Australia, Oceania, by Norbert Probst