Fluorescent Coral in White Light. A close up image of Brain Coral (Platygyra Ehrenberg) in white light . This species of coral will glow brightly when illuminated in ultra-violet (UV) light. Brain coral is a common name given to corals in the family Faviidae so called due to their generally spheroid shape and grooved surface which resembles a brain. Each head of coral is formed by a colony of genetically identical polyps which secrete a hard skeleton of calcium carbonate; this makes them important coral reef builders like other stony corals in the order Scleractinia. This image is part of a series showing the identical specimen in white light and uv light.
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