Jeff Rotman / Close up of skin of a dolphinfish (Coryphaena hippuris). Cocos Island, Costa Rica, Pacific Ocean.

Pete Oxford / Yellowtail snapper (Ocyurus chrysurus) Jardines de la Reina National Park Cuba, Caribbean

Pete Oxford / Yellowtail damselfish, juvenile (Microspathodon chrysurus) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Yellowtail Snapper (Ocyurus chrysurus), Jardines de la Reina National Park, Cuba

Alex Mustard / Caribbean reef shark (Carcharhinus perezi) bursts through the middle of a school of Yellowtail snappers (Ocyurus chrysurus). Grand Bahama, Bahamas. Tropical West Atlantic Ocean.

Jeff Rotman / Caribbean Reef Shark (Carcharhinus perezi) wounded with fish hook, Yellowtail Snapper(Ocyurus chrysurus), Bahamas, Caribbean Sea.

Peter Scoones / Yellowtail snapper (Ocyurus chrysurus) Caribbean

Peter Scoones / Yellowtail snapper (Ocyurus chrysurus) Caribbean photographed during making of BBC Planet Earth series 2005

Dan Burton / Two Common butterfly fish (Chaetodon chrysurus) Red Sea, Egypt

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) grazing on algae near Yellowtail Damselfish (Microspathodon chrysurus), Sullivan Bay, Santiago Island, Galapagos Islands, Ecuador

Pete Oxford / Yellowtail Damselfish (Microspathodon chrysurus), Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Yellowtail Damselfish (Microspathodon chrysurus) juvenile, Bonaire, Netherlands Antilles, Caribbean