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Figure 2 - Nurse shark (Ginglymostoma cirratum) cruising the boundary between spur and groove reef habitat and sand flats at Mona Island, Puerto Rico. Nurse sharks feed primarily on invertebrates, including crustaceans and mollusks they “sift” out of the sediment. Image courtesy of Ron Hill, NOAA Fisheries, SEFSC-Galveston.
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