In a reef in the Red Sea, phosphorescent coral glows bright green. The deeper, darker parts of the Red Sea, where light doesn't often reach, are lit up by an unexpected source: glowing corals. These unique plants harvest light from the ocean floor, creating an underwater rainbow of neon color that appears almost supernatural.
According to representatives of the UK's Coral Reef Laboratory at the University of Southampton, the fluorescent pigments are actually proteins that, when illuminated with blue or ultraviolet light, give off light of longer wavelengths, producing red and green light unlike that observed in shallower waters.
