Andy Murch / Nurse shark (Ginglymostoma cirratum) swimming below surface at sunset. South Bimini Island, Bahamas.

Andy Murch / Little gulper shark (Centrophorus uyato). Cape Eleuthera, Bahamas.

Andy Murch / Lemon shark (Negaprion brevirostris) surfacing with open mouth. Tiger Beach, Little Bahama Bank, Bahamas.

Andy Murch / Great hammerhead shark (Sphyrna mokarran) mouth wide open, feeding in shallow water, surrounded by fish. South Bimini Island, Bahamas.

Shane Gross / Lemon shark juvenile (Negaprion brevirostris) swimming in mangrove habitat near blue crab (Callinectes sapidus), a prey species for the shark. Eleuthera, Bahamas.

Shane Gross / Lemon shark juvenile (Negaprion brevirostris) trying to feed on the leaves of a red mangrove (Rhizophora mangle). As pups, the sharks have to learn to hunt for themselves and sometimes make mistakes....

Shane Gross / Green turtle (Chelonia mydas) feeding on on Turtlegrass (Thalassia testudinum) seagrass bed. The Bahamas.

Shane Gross / Green sea turtle (Chelonia mydas) swimming over sand ripples, Eleuthera, Bahamas.

Shane Gross / Green sea turtle (Chelonia mydas) near the surface in shallow water, Eleuthera, Bahamas.

Shane Gross / Common octopus (Octopus vulgaris) hunting on a reef off Eleuthera Island, Bahamas.

Shane Gross / Caribbean reef squid (Sepioteuthis sepioidea) portrait at night, Eleuthera, Bahamas.

Shane Gross / Caribbean reef squid (Sepioteuthis sepioidea) portrait reflecting off the surface of the ocean at night, Eleuthera, Bahamas.

Shane Gross / Red mangrove (Rhizophora mangle) habitat with shoal of Silversides (Atherinomorus lacunosus), Eleuthera, Bahamas. August.

Shane Gross / Common octopus (Octopus vulgaris) on a coral reef in The Bahamas. August.

Shane Gross / A Bottlenose dolphin (Tursiops truncatus), heavily scarred, possibly from shark attacks, on sand bank off Eleuthera, Bahamas.

Shane Gross / A Great hammerhead shark (Sphyrna mokarran) swimming towards the camera, Bimini, Bahamas.

Shane Gross / Great hammerhead shark (Sphyrna mokarran) swimming over sandy seabed, Bimini, Bahamas.

Shane Gross / Two Caribbean reef shark (Carcharhinus perezi) one with a fishing hook and line and one with a broken jaw from catch and release shark fishing. The Bahamas.

Shane Gross / Face portrait of a Great hammerhead shark (Sphyrna mokarran) off Bimini, Bahamas.

Shane Gross / Southern stingray (Dasyatis americana) female underside showing the mouth and gills.The Bahamas.

Shane Gross / Great hammerhead shark (Sphyrna mokarran) swimming over a sandy seabed, Bimini, Bahamas

Shane Gross / Portrait of an Atlantic spotted dolphin (Stenella frontalis) reflected at surface, off Bimini, Bahamas.

Shane Gross / Almaco jack (Seriola rivoliana) uses a discarded fishing net, drifting in the open ocean as shelter. The Bahamas.

Shane Gross / Green sea turtle (Chelonia mydas) resting in a coral reef. Eleuthera, Bahamas.

Shane Gross / Bottlenose dolphin (Tursiops truncatus) underwater playing in the shallows off Eleuthera, Bahamas.

Shane Gross / Bottlenose dolphin (Tursiops truncatus) underwater rubbing herself on a sponge off Eleuthera, Bahamas.

Shane Gross / Elkhorn corals (Acropora palmata) at night silhouetted by a scientist's light during the annual coral spawn. Abaco, Bahamas.

Shane Gross / Graysby fish (Cephalopholis cruentata) a type of grouper, hiding in a sponge off Eleuthera, Bahamas.

Shane Gross / Queen conch (Lobatus gigas) juvenile feeding on algae growing on Seagrass (Thalassia testudinum) blades. Eleuthera, Bahamas.

Klein & Hubert / Piglet swimming in turquoise sea. Bahamas.

Klein & Hubert / Piglet discovering a starfish on an island beach, Bahamas.

Klein & Hubert / Piglet swimming in turquoise sea. Bahamas.

Shane Gross / A small aggreggation of queen conch (Lobatus gigas) off Cat Island, Bahamas

Shane Gross / Queen conch (Lobatus gigas) laying eggs in the Exuma Cays Land and Sea Park, Exuma, Bahamas.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) two in a courtship dance at sunrise in a mangrove area near Eleuthera, Bahamas.

Shane Gross / Lemon shark pup (Negaprion brevirostris) in mangrove forest which acts as a nursery for juveniles of this species. Eleuthera, Bahamas.

Shane Gross / Lemon shark pup (Negaprion brevirostris) in mangrove forest which acts as a nursery for juveniles of this species. Eleuthera, Bahamas.

Shane Gross / Lemon shark pup (Negaprion brevirostris) in mangrove forest which acts as a nursery for juveniles of this species. Eleuthera, Bahamas.

Shane Gross / Lemon shark pup (Negaprion brevirostris) in mangrove forest which acts as a nursery for juveniles of this species. Eleuthera, Bahamas.

Alex Mustard / RF - Pod of Atlantic spotted dolphins (Stenella frontalis) swimming over a shallow, sandy seabed. North Bihmini, Bahamas. (This image may be licensed either as rights managed or royalty free.)

Alex Mustard / Nassau grouper (Epinephelus striatus) yawning on a coral reef drop off. San Salvador island, Bahamas. Bahamas Sea, Tropical West Atlantic Ocean.

Alex Mustard / Great hammerhead shark (Sphyrna mokarran) female at night with Bar jacks (Caranx ruber), South Bimini, Bahamas. The Bahamas National Shark Sanctuary. Gulf Stream, West Atlantic Ocean.

Alex Mustard / Great hammerhead shark (Sphyrna mokarran) male in shallow water. South Bimini, Bahamas. The Bahamas National Shark Sanctuary. Gulf Stream, West Atlantic Ocean.

Alex Mustard / Great hammerhead shark (Sphyrna mokarran) swimming over a sandy seabed, accompanied by Rainbow runners (Elagatis bipinnulata) South Bimini, Bahamas. The Bahamas National Shark Sanctuary. Gulf Stream,...

Alex Mustard / Diver (Predrag Vuckovic) is dwarfed by Great hammerhead shark (Sphyrna mokarran). This species can reach over 6m in length. South Bimini, Bahamas. The Bahamas National Shark Sanctuary. Gulf Stream, We...

Franco Banfi / Tiger shark (Galeocerdo cuvier) Northern Bahamas, Caribbean Sea, Atlantic Ocean.

Franco Banfi / Scuba diver and Tiger shark (Galeocerdo cuvier) Northern Bahamas, Caribbean Sea, Atlantic Ocean. March 2009.

Franco Banfi / Lemon shark (Negaprion brevirostris) Northern Bahamas, Caribbean Sea, Atlantic Ocean