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Images: Underwater 'Vineyard' Grows Endangered Corals

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Line nursery

Credit: NOAA.
Researchers raise threatened staghorn and elkhorn corals at a nursery in the warm Caribbean waters off the southern coast of Puerto Rico. Known as a line nursery, workers affix small pieces of coral to rubber-coated wires suspended above the seafloor, a technique that has proved very successful.    Less «
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