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Resilient species of coral can move to inhospitable areas and lay the foundations for new reefs, a recent study shows. Scientists have discovered that these tough, mobile corals can create their own stable habitats, which act as a base upon which other species can attach and build reefs. These hardy corals - known as coralliths - grow on pebbles or fragments of dead reefs, and they can survive being buffeted by waves and ocean currents. [Source: University of Edinburgh]
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