Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus). Egypt, Red Sea. Indo-Pacific.

Tim Fitzharris / Green Sea Turtle (Chelonia mydas) and Orange-striped Triggerfish (Balistapus undulatus), Apo Island, Philippines

Pete Oxford / Finescale triggerfish (Balistes polylepis) off Wolf Island, Galapagos Islands

Juergen Freund / Leatherjacket / Skip Jack (Oligoplites saurus) and shoal of small fish around pilons beneath the 2km long Busselton Jetty. Busselton, Western Australia

Doug Perrine / Redtail triggerfish {Xanthichthys mento} Mexico

Doug Perrine / Redtail triggerfish, female (Yellow tail) {Xanthichthys mento} Mexico, pacific

Constantinos Petrinos / Blue triggerfish {Pseudobalistes fuscus} with Cleaner fish Red Sea

Flip Nicklin / Queen Triggerfish (Balistes vetula) portrait off of Manualita Island on the west side of Cocos Island, Costa Rica

Alex Mustard / A portrait of a clown triggerfish (Balistoides conspicillum) on a coral reef. Misool, Raja Ampat, West Papua, Indonesia. Misool Marine Protected Area. Ceram Sea. Tropical West Pacific Ocean.

Pascal Kobeh / Finescale triggerfish (Balistes polylepis) sleeping at night. Baja California, Mexico.

Pascal Kobeh / Blue triggerfish (Pseudobalistes fuscus) resting in sand on sea floor. Flores Sea, Indonesia.

Tim Fitzharris / Orange-striped Triggerfish (Balistapus undulatus) and snapper school, Miniloc Island, Palawan, Philippines

Georgette Douwma / Flagtail triggerfish (Sufflamen chrysopterum). West Papua, Indonesia. Indo-West Pacific.

Georgette Douwma / Flagtail triggerfish (Sufflamen chrysopterum). West Papua, Indonesia. Indo-West Pacific.

Georgette Douwma / Blue or Rippled triggerfish (Pseudobalistes fuscus). West Papua, Indonesia. Indo-West Pacific.

Georgette Douwma / Yellowmargin triggerfish (Pseudobalistes flavimarginatus) juvenile, West Papua, Indonesia. Indo-West Pacific.

Georgette Douwma / Flagtail triggerfish (Sufflamen chrysopterum). West Papua, Indonesia. Indo-West Pacific.

Nick Hawkins / Spotted oceanic triggerfish (Canthidermis maculata) dead on a fish aggregating device, illegal in many areas. Cocos Island National Park, Costa Rica. 2018.

Georgette Douwma / Orange-lined triggerfish (Balistoides undulatus). North Sulawesi, Indonesia.

Georgette Douwma / Redtooth triggerfish (Odonus niger). North Sulawesi, Indonesia.

Georgette Douwma / Redtooth triggerfish (Odonus niger). North Sulawesi, Indonesia.

Georgette Douwma / Orange-lined triggerfish (Balistoides undulatus). North Sulawesi, Indonesia.

David Fleetham / Picasso triggerfish (Rhinecanthus aculeatus). Maui, Hawaii.

David Fleetham / Moustache triggerfish (Balistoides viridescens) blowing water to aerate nest of eggs. Yap, Micronesia.

David Fleetham / Yellowmargin triggerfish (Pseudobalistes flavimarginatus). Yap, Micronesia.

Alex Mustard / Pair of a Honeycomb moray eels (Gymnothorax favagineus) on a coral reef with triggerfish schooling above. North Male Atoll, Maldives, Indian Ocean.

David Fleetham / Titan / Giant triggerfish (Balistoides viridescens) eating Parrotfish (Scaridae) while five orange-lined triggerfish (Balistapus undulatus) watch. Philippines.

David Fleetham / Clown triggerfish (Balistoides conspicillum) Kandavu, Fiji.

David Fleetham / Close-up of the pectoral fin of a Black Durgon / Pinktail Triggerfish (Melichthys vidua). Hawaii.

David Fleetham / Titan triggerfish (Balistoides viridescens) getting attention of four Scarlet cleaner shrimp (Lysmata amboinensis) off Tulamben, Bali, Indonesia.

David Fleetham / Male gilded triggerfish (Xanthichthys auromarginatus) on reef, Hawaii.

Alex Mustard / Honeycomb moray (Gymnothorax favagineus) on coral reef with Triggerfish (Balistidae) schooling above. North Male Atoll, Maldives. Indian Ocean.

Richard Robinson / Scimitar triggerfish (Sufflamen bursa) at Vatoa Island / Turtle Island by Captain Cook, Lau Island Group, Fiji.

Linda Pitkin / Blue triggerfish (Pseudobalistes fuscus) Shark Reef to Jolande, Ras Mohammed National Park, Egypt, Red Sea.

Linda Pitkin / Blue triggerfish (Pseudobalistes fuscus) Shark Reef to Jolande Reef, Ras Mohammed National Park, Egypt, Red Sea.

Linda Pitkin / Titan triggerfish (Balistoides viridescens), guarding nest site, in head down pose Sataya South, Fury Shoal, Egypt, Southern Red Sea

Constantinos Petrinos / Titan triggerfish (Balistoides viridescens) feeding on sea urchin, Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Titan triggerfish (Balistoides viridescens) feeding on sea urchin, Lembeh Strait, North Sulawesi, Indonesia.

Claudio Contreras / Black jack (Caranx lugubris), Green Jack (Caranx caballus) and Redtail triggerfish (Xanthichthys mento), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Oc...

Claudio Contreras / Bluefin trevally (Caranx melampygus) and Redtail triggerfish (Xanthichthys mento), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, M...

Claudio Contreras / Redtail Triggerfish (Xanthichthys mento), Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific Ocea...

Georgette Douwma / Arabian picassofish (Rhinecanthus assasi) Egypt, Red Sea. Only found Red Sea to Gulf Oman and Arabian Gulf.

Alex Mustard / Silhouette of reef fish, including a Blue triggerfish (Pseudobalistes fuscus) and many Scalefin anthias (Pseudanthias squamipinnis). Ras Mohammed Marine Park, Sinai, Egypt. Red Sea.

Graham Eaton / Picasso Triggerfish (Rhinecanthus aculeatus) in Red Sea, Egypt. July.

Pete Oxford / Boomerang Triggerfish (Sufflamen bursa), Cenderawasih Bay, West Papua, Indonesia

Georgette Douwma / Titan triggerfish (Balistoides viridescens) with a Bluestreak cleaner wrasse (Labroides dimidiatus) Andaman Sea, Thailand.

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus). Egypt, Red Sea. Indo-Pacific.

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus). Egypt, Red Sea. Indo-Pacific.

Georgette Douwma / Orangestriped triggerfish (Balistapus undulatus). Egypt, Red Sea.

Georgette Douwma / Orangestriped triggerfish (Balistapus undulatus). Egypt, Red Sea.

Georgette Douwma / Orangestriped triggerfish (Balistapus undulatus). Egypt, Red Sea.

Georgette Douwma / Arabian picassofish (Rhinecanthus assasi). Egypt, Red Sea.

Franco Banfi / Grey triggerfish (Balistes capriscus,)Santa Maria Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Grey triggerfish (Balistes capriscus,)Santa Maria Island, Azores, Portugal, Atlantic Ocean

Pete Oxford / Triggerfish (Balistidae) for sale, Suva Seafood Market, Viti Levu, Fiji, South Pacific, April 2014.

Pascal Kobeh / Giant triggerfish (Balistoides viridescens) building its nest, Sudan. Red Sea.

Pascal Kobeh / Mexican goatfish (Mulloidichthys dentatus) and Blue-and-gold snappers (Lutjanus viridis) in a feeding frenzy over Triggerfish eggs, Baja California peninsula, Mexico. Sea of Cortez.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) cleaning Titantriggerfish (Balistoides viridescens) Maldives. Indian Ocean.

Michael Pitts / Orange-striped triggerfish (Balistapus undulatus) and Sixspot groupers (Cephalopholis sexmaculata) on a sunken shipwreck, Maldives, Indian Ocean.

Alex Mustard / Clown triggerfish (Balistoides conspicillum) between pair of Seafans (Melithaea sp.) Fiabacet Islands, Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea.

Alex Mustard / Male Napoleon wrasse (Cheilinus undulatus) fighting with Titan triggerfish (Balistoides viridescens) defending its large clutch of eggs. Shark Reef, Ras Mohammed Marine Park, Sinai, Egypt. Red Sea.

Alex Mustard / Large, male Napoleon wrasse (Cheilinus undulatus) demolishes the nest of Titan triggerfish (Balistoides viridescens) eating its large clutch of eggs. Shark Reef, Ras Mohammed Marine Park, Sinai, Egypt...

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) with a Bluestreak cleaner wrasse. Egypt, Red Sea.

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) grubbing for food with a Bluethroat or Whitetail triggerfish (Sufflamen albicaudatus) keeping a close watch for escaping prey. Egypt, Red Sea.

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) grubbing for food with Abudjubbe splendor wrasse (Cheilinus abudjubbe), (a Red Sea endemic), and a Speckled sandperch (Parapercis hexophtalma) keeping a close...

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) Egypt, Red Sea.

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) digging in the sand for molluscs or worms. Egypt, Red Sea.

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) Egypt, Red Sea.

Georgette Douwma / Picasso triggerfish (Rhinecanthus assasi) swimming over coral reef. Egypt, Red Sea.

Georgette Douwma / Redtooth triggerfish (Odonus niger) Maldives.

Georgette Douwma / Red-mouth triggerfish (Odonus niger) with Bluestreak cleaner wrasse (Labroides dimidiatus) Raja Ampat, West Papua, Indonesia.

Franco Banfi / Redtail triggerfish (Xanthichthys mento) San Benedicto, Revillagigedo / Socorro Islands, Mexico, East Pacific Ocean

Jabruson / Fisherman holding a 3 kg Titan triggerfish (Balistoides viridescens) Wasini Island of the coast of Kenya, February 2011

Franco Banfi / Clown triggerfish (Balistoides conspicillum) Maldives, Indian Ocean

Franco Banfi / Titan trigger fish (Balistoides viridescens) foraging in coral for mussels, Maldives, Indian Ocean

Franco Banfi / Titan trigger fish (Balistoides viridescens) foraging amongst coral for mussels, Maldives, Indian Ocean

Franco Banfi / Titan trigger fish (Balistoides viridescens) Maldives, Indian Ocean

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) Egypt, Red Sea

Georgette Douwma / Picasso triggerfish (Rhinecanthus assasi) expels sand from gills after feeding, Red Sea.

Georgette Douwma / Picasso triggerfish (Rhinecanthus assasi) swimming over coral reef. Egypt, Red Sea.

Georgette Douwma / Blue triggerfish (Pseudobalistes fuscus) watching a Bluespotted ribbontail ray (Taeniura lymna) digging in sandy bottom for food. Egypt, Red Sea.

Georgette Douwma / Orangestriped triggerfish (Balistapus undulatus) swimming past coral wall covered in invertebrates, Raja Ampat, West Papua, Indonesia

Georgette Douwma / Greenspotted pufferfish (Canthigaster janthinopera) feeding on a dead Redtooth triggerfish (Odonis niger). Many dead and dying fish on coral reefs in the Maldives in April 2012, cause unknown, Maldive...

Alex Mustard / Caribbean reef shark (Carcharhinus perezii) with a pair of bar jacks (Caranx ruber) cruises through a school of black durgon (Melichthys niger) above a coral reef, East End, Grand Cayman, Cayman Isla...

Jeff Rotman / Picasso triggerfish (Rhinecanthus assasi) portrait, Red Sea, Egypt

Jeff Rotman / Tail of Clown triggerfish (Balistoides conspicillum) Great Barrier Reef, Australia

Pete Oxford / Ocean Triggerfish (Canthidermis sufflamen), Bonaire, Netherlands Antilles, Caribbean

Juergen Freund / Clown triggerfish (Balistoides conspicillum) swimming past coral reef, West New Britain, Papua New Guinea.

Juergen Freund / Orange striped triggerfish (Balistapus undulatus) hunting over coral reef, Bali, Indonesia.

Juergen Freund / Yellowmargin triggerfish (Pseudobalistes flavimarginatus) with a shell in its mouth, Bali, Indonesia.

Juergen Freund / Yellowmargin triggerfish (Pseudobalistes flavimarginatus) hunting for prey on seabed, Bali, Indonesia.

Juergen Freund / Fish frenzy feeding on damselfish eggs -butterflyfish, triggerfish, wrasses, damselfish. Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Titan / Giant / Moustache triggerfish (Balistoides viridescens). Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Titan triggerfish (Balistoides viridescens) portrait, Bali, Indo-pacific.

Georgette Douwma / Juvenile Blue triggerfish (Pseudobalistes fuscus) Rinca, Komodo National Park, Indonesia, October