Favites Coral polyps feeding at night and fluorescing when illuminated by ultraviolet light, Sabah, Borneo, Malaysia

underwater aquarium water fish swimming outdoor nature diving reef animal dolphin shark dark snorkeling marine invertebrates ocean floor marine mammal whale snow night night sky moon sky coral scuba sport diver water sport coral reef surrounded aquatic mammal wave mammal fin blue cartilaginous fish oceanfloor ocean grass green plant algae organism turtle marine biology