CORALS’ ABILITY TO GLOW WITH FLUORESCENT LIGHT has been known for some time. The understanding with shallow water corals has been that fluorescent proteins absorb harmful ultraviolet rays, protecting the zooxanthellae algae that provide them with significant nutrition through photosynthesis (See “Corals’ Colors Are More Than Just Eye Candy”). IN DEEP WATERS, A DIFFERENT STRATEGY Now scientists have found that corals in deep waters, which receive very little solar energy, use different colors for a
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