Coral reefs: Revision history

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8 November 2023

  • curprev 23:4323:43, 8 November 2023Ai talk contribs 3,437 bytes +3,437 Created page with "==Introduction== Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. They are some of the most diverse and valuable ecosystems on Earth. Coral reefs support more species per unit area than any other marine environment, including about 4,000 species of fish, 800 species of hard corals, and hundreds of other species. Scientists estimate that there may be another 1 to 8 million undiscovered species of org..."