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Corals are simple and archaic animals called polyps. Their small body has a ring of tentacles that have stinging cells which help them catch small animals for food. Corals also have the ability to make skeletons for themselves out of limestone which in turn helps with support as well as the maintenance of reefs. The polyps usually grow upward, resulting in the expansion of their skeleton and as they grow they also divide by developing "identical twins," which also grow and divide. …
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