Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

nurse sharks feeding belize ginglymostoma cirratum underwater divers marine life turquoise waters ocean reef aquatic conservation scuba snorkeling sea biodiversity fish boat protected area ecosystem preserve wildlife caribbean shallow water tropical oceanography adventure nature tourism diving environment behavior exploration habitat health biology snorkelers