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

nurse sharks ginglymostoma cirratum belize marine life underwater reef ecosystem ocean gathering biodiversity swimming sea grass wildlife conservation caribbean tropical habitat snorkeling nature fish spot aquatic ecological balance predator prey creatures environment group behavior shallow water coral protection exploration shark species coastal waters belizean oceanic habitats