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coral summary

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Below is the article summary. For the full article, see coral.
Great Barrier Reef
Great Barrier Reef Summary
Great Barrier Reef, complex of coral reefs, shoals, and islets in the Pacific Ocean off the northeastern coast of Australia that is the longest and largest reef complex in the world. The Great Barrier Reef extends in roughly a northwest-southeast direction for more than 1,250 miles (2,000 km), at