the.com/coral
An animal that builds limestone cities, eats sunlight, and blushes white when it's dying.
living rockTiny animals called polyps, not plants or stones
solar poweredAlgae inside feed corals via photosynthesis
ancient buildersGreat Barrier Reef visible from space
bleach warningStress expels their algae, turning them ghost white
slow grindSome corals grow a centimeter per year