Jordi Chias / Nassau grouper (Epinephelus striatus) on a coral reef, Little Cayman Island, Cayman Islands, Caribbean.

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 / Nassau grouper (Epinephelus striatus) watched by a diver on a coral reef. San Salvador island, Bahamas. Bahamas Sea, Tropical West Atlantic Ocean.

Alex Mustard / Pederson cleaner shrimp (Periclimenes pedersoni) cleaning the eye of a Nassau grouper (Epinephelus striatus), Bloody Bay Wall, Little Cayman, Cayman Islands. British West Indies, Caribbean Sea.

Michael Pitts / Wreck of tugboat ''Blue Plunder'', Nassau, Bahamas. One year after sinking. July 2008.

Michael Pitts / Wreck of tugboat ''Blue Plunder'' at night off Nassau, Bahamas. January 2008.

Michael Pitts / Hydroids growing on hull of tugboat ''Blue Plunder'' wreck, Nassau, Bahamas. July 2008.

Tim Laman / Lookdown fish (Selene vomer), captive. Nassau, New Providence Island, Bahamas.

Doug Perrine / Nassau grouper {Epinephelus striatus} mouth being cleaned of parasites by clearner shrimp, Turks & Caicos, Caribbean Sea (Non-ex).

Juergen Freund / Close up of eye of Nassau Grouper fish {Epinephelus striatus} Cuba, Carribean Sea

Michael Pitts / Grey reef shark {Carcharhinus amblyrhynchos} Nassau, Bahamas, Caribbean

Shane Gross / Southern stingray (Dasyatis americana) female covering itself with sand to hide. Nassau, Bahamas.