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CURIOUS MINDS WELCOMELEARN SOMETHING UNEXPECTED

Coral Reefs & Ocean Ecosystems trivia.

Learn why corals are animals, how reef-building polyps and algae cooperate, what bleaching means, and how ocean ecosystems stay healthy.

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INTERACTIVE QUIZ

Coral Reefs & Bleaching: 10 Explained Questions

Check your knowledge of coral polyps, reef skeletons, symbiotic algae and what NOAA means by coral bleaching.

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READCoral Reef Facts: Polyps, Symbiosis, Bleaching & Ocean LifeMeet the tiny animals behind giant reefs, learn how coral and algae cooperate, and understand why bleaching signals serious stress but not always death.