David Shale / Female Anglerfish fanfin seadevil (Caulophryne jordani) - Deep sea species from Atlantic Ocean, found at 700-3000m.

David Shale / Fang Tooth {Anoplogaster cornuta} close-up of head showing teeth, from the Mid-Atlantic Ridge, 2600m

Alex Mustard / Warty / Clown frogfish (Antennarius maculatus) male portrait, Anilao, Batangas, Luzon, Philippines, March

Jordi Chias / Angular roughshark (Oxynotus centrina) a deepsea species living at 80-300m depth, caught by fishermen and released, Costa Brava, Catalunya, Spain, Mediterranean Sea

Franco Banfi / Green moray (Gymnothorax funebris) Santa Lucia, Camaguey, Cuba, Caribbean Sea, Atlantic Ocean

Solvin Zankl / Deepsea Viperfish (Chauliodus sloani) specimen from the North Atlantic near the North West of Spain, at a depth of 560-580m.

Solvin Zankl / Illuminated netdevil (Linophryne arboritera), female specimen, from deepsea Atlantic Ocean near Cape Verde at a depth of 1900m.

Solvin Zankl / Ribbon sawtail fish (Idiacanthus fasciola) from Atlantic Ocean, at a depth of 800-1000m.

Christophe Courteau / Shore clingfish / Cornish sucker (Lepadogaster lepadogaster) portrait, Brittany, France, January.

Alex Mustard,Alex Mustard / Wolf fish (Anarhichas lupus) face portrait. Gardur, south west Iceland. North Atlantic Ocean.

Alex Mustard / Lemon sole (Microstomus kitt) portrait. Gardur, south west Iceland. North Atlantic Ocean

Alex Mustard,Alex Mustard / Portrait of a Yellow moray eel (Gymnothorax prasinus) - endemic to SE Australia. Chowder Bay, Sydney Harbour, New South Wales, Australia.

Solvin Zankl / Dragonfish (Melanostomias melanops) - deep sea specimen from 2000m depth, nr Cape Verde Islands, North Atlantic

Solvin Zankl / Dragonfish (Melanostomias melanops) - deep sea specimen from 2000m depth, nr Cape Verde Islands, North Atlantic

Solvin Zankl / Deepsea Blackdevil fish (Melanocetus murrayi) female anglerfish specimen.

Solvin Zankl / Viperfish (Chauliodus sloani) - deep sea specimen from Portugal

Alex Mustard / Peacock flounder (Bothus lunatus) resting on the seabed, East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Linda Pitkin / 2020VISION / Atlantic wolf fish (Anarhichas lupus) in a rock crevice, St Abbs (St Abbs and Eyemouth Voluntary Marine Reserve), Berwickshire, Scotland, UK, August 2011

Doug Allan / Icefish (Chaenocephalus aceratus) Signy Island, South Orkney Islands, Antarctica, Freeze Frame book plate page 92

Jeff Rotman / Windowpane flounder (Scophthalmus aquosus) camouflaged on sandy seabed, Hodgekin's Cove, Massachusetts, USA, Atlantic Ocean.

Jeff Rotman / Spotted eagle ray (Aetobatus narinari), underside, Natal Coast, South Africa.

Juergen Freund / Whitemargin stargazer (Uranoscopus sulphureus) half hidden in the sand. Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Sargassum frogfish / anglerfish (Histrio histrio) in its floating Sargassum seaweed home, El Nido, Palawan, Philippines

Juergen Freund / Sargassum frogfish / anglerfish (Histrio histrio) in its floating Sargassum seaweed home, El Nido, Palawan, Philippines

Juergen Freund / Yellow Shortfin lionfish (Dendrochirus brachypterus) face. Lembeh Strait, Sulawesi, Indonesia

Georgette Douwma / Giant Frogfish (Antennarius commerson) on coral reef. The animal can vary greatly in colour and pattern. Bali, Indonesia, December.

Doug Perrine / Dolphin fish / Mahi mahi / Dorado (Coryphaena hippurus) large male, off Isla Mujeres, near Cancun, Yucatan Peninsula, Mexico, Caribbean Sea

David Shale / Head-on view of Spothead lanternfish {Diaphus metopocampus} from between 500 and 800m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Fangtooth (Anoplogaster cornuta) portrait, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Lizard fish (Bathysaurus ferox) head portrait, from 2750m / 9022ft, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Viper fish {Chauliodus sloani}, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Head of Lancetfish {Alepisaurus brevirostris} from Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish Melanocetus murrayi, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Angler fish (Melanocetus murrayi) Mid-Atlantic Ridge, North Atlantic Ocean

Solvin Zankl / Deep Sea Viperfish {Chauliodus sloani} with chromatophores and bioluminescence, Atlantic ocean

Solvin Zankl / Murrays abyssal anglerfish (Melanocetus murrayi) Atlantic ocean. A deep-sea fish with bioluminescent lure used to attract prey. The bioluminescence is produced by symbiotic bacteria; these bacteria ar...

David Shale / Fang Tooth {Anoplogaster cornuta} close-up of head showing teeth, from the Mid-Atlantic Ridge, 2600m

Doug Perrine / Stonefish {Synanceja verrucosa} Maldives, Indian Ocean

David Shale / Fangtooth, bathypelagic fish (Anoplogaster cornuta), deep sea Atlantic ocean

David Shale / Deepsea fish {Paraliparis sp.) North East, Atlantic Ocean off Cape Verde Islands depth 700-1000m

David Shale / Bathypelagic Lizard fish (Bathysaurus ferox), deep sea Atlantic ocean

David Shale / Bathypelagic Lizard fish (Bathysaurus ferox), deep sea Atlantic ocean

David Shale / Smallspine spookfish (Harriotta haeckeli), a Rabbitfish / Chimaera, deep sea Atlantic ocean,

Solvin Zankl / Giant frogfish {Antennarius commerson} Lembeh, Sulawesi, Indonesia

Solvin Zankl / Striped / hairy frogfish {Antennarius striatus} Lembeh, Sulawesi

Solvin Zankl / Face of Whitemargin stargazer {Uranoscopus sulphureus} Lembeh, Sulawesi

Norbert Wu / Humpback Anglerfish (Melanocetus johnsoni) deep sea species showing bioluminescent fishing pole attracts deep sea prey, California

Norbert Wu / Devil Angler (Linophryne indica) fish, deep sea species showing large female with dwarf male attached

Norbert Wu / Humpback Anglerfish (Melanocetus johnsoni) deep sea species showing fishing pole with bioluminescent lure used to attract prey

Fred Bavendam / Whitemargin Stargazer (Uranoscopus sulphureus) lying buried in sand where it waits to ambush prey, Lembeh Strait, Indonesia

Norbert Wu / Fangtooth (Anoplogaster cornuta) has bony, hard body, unlike most deep sea fish, San Diego, California

Norbert Wu / Fangtooth (Anoplogaster cornuta) has bony, hard body, unlike most deep sea fish, Eastern Pacific

Fred Bavendam / Three-spined Frogfish (Batrachomoeus trispinosus), Exmouth, Western Australia

Alex Mustard / Diver (Jennie Lawson) with a camouflaged Scorpionfish (Scorpaenopsis oxycephala) on a coral reef. Gubal Island, Egypt. Strait Of Gubal, Gulf of Suez, Red Sea.

Gary Bell/ Oceanwide / Great Barracuda (Sphyraena barracuda), Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Great Barracuda (Sphyraena barracuda), Great Barrier Reef, Australia

David Fleetham / Painted frogfish (Antennarius pictus) with first dorsal spine and lure extended to attract prey. Dumaguete, Philippines.

Gary Bell/ Oceanwide / Saddletail Grouper (Epinephelus daemelii), Middleton Reef, New South Wales, Australia

Tony Wu / Long shanny / Northern blenny (Stichaeus grigorjewi) extending multi-pronged lure to attract prey at night. Sea of Japan, Japan. March.

David Fleetham / Polka-Dot Batfish (Ogcocephalus radiatus), Florida, USA.

David Fleetham / Long jawed squirrelfish (Sargocentron spiniferum), Hawaii.

Alex Mustard / Portrait of a Pacific monkeyfish (Erosa erosa) lying in ambush on a sandy seabed. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Alex Mustard / Close up portrait of the face of a Nurse shark (Ginglymostoma cirratum) resting on the sand in shallow water. Its barbels are clearly visible on its top lip. South Bimini, Bahamas. The Bahamas Nationa...

Constantinos Petrinos / Humpback scorpionfish (Scorpaenopsis gibbosa) portrait. Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / Nurse shark (Ginglymostoma cirratum) portrait, resting on the sand in shallow water. Its barbels are clearly visible on its top lip. South Bimini, Bahamas. The Bahamas National Shark Sanctuary. Gulf S...

Pascal Kobeh / Wolf-eel (Anarrhichthys ocellatus) Vancouver Island, British Columbia, Pacific Ocean.

Solvin Zankl / Viperfish (Chauliodus sloani) specimen from the North Atlantic deep sea.

Solvin Zankl / Deep sea angler fish (Ceratias holboelli) specimen, from Atlantic Ocean near Iceland at a depth of 400m.

Pascal Kobeh / Rosy lipped batfish (Ogcocephalus porrectus), Cocos Island, Costa Rica, Pacific Ocean. Small reproduction only

Pascal Kobeh / Reef stonefish (Synanceia verrucosa) close up, highly venomous species. Maldives. Indian Ocean.

Pascal Kobeh / Reef stonefish (Synanceia verrucosa) close up, highly venomous species. Maldives. Indian Ocean.

Mark Carwardine / Freshly caught Dogfish {Hydrolycus sp} from the Aruazinho river, Amazonia, Brazil

Andy Trowbridge / Fly fisherman (Paul van Klink) 'sight' fishing to brown trout (Salmo trutta) in a gin clear 'backcountry' river, Ugly River, Kahurangi National Park, Buller District, South Island, New Zealand. Decemb...

Andy Trowbridge / Fly fisherman (Paul van Klink) hooking a lively brown trout (Salmo trutta) in a clear 'backcountry' river, Ugly River, Kahurangi National Park, Buller District, South Island, New Zealand. December, 20...

Andy Trowbridge / Fly fisherman (Paul van Klink) playing a lively brown trout (Salmo trutta) in a clear 'backcountry' river, Ugly River, Kahurangi National Park, Buller District, South Island, New Zealand. December, 20...

Andy Trowbridge / Fly fisherman (Paul van Klink) casting a fly to a sighted brown trout (Salmo trutta) in a gin clear 'backcountry' river, Ugly River, Kahurangi National Park, Buller District, South Island, New Zealand...

Andy Trowbridge / Fly fisherman (Paul van Klink) drifting a fly pass a brown trout (Salmo trutta) in a gin clear 'backcountry' river, Ugly River, Kahurangi National Park, Buller District, South Island, New Zealand. Dec...

Solvin Zankl / Dragonfish (Melanostomias melanops) - deep sea specimen from 2000m depth, near Cape Verde Islands, North Atlantic.

Chris Newbert / Stargazer (Uranoscopus sp) face showing eyes and teeth, Indonesia

Jeff Rotman / Black blotched pufferfish (Diodon liturosus) inflated with water at night as defensive behaviour, Sipadan Island, Borneo, Malaysia.

Sebastian Kennerknecht / California Condor (Gymnogyps californianus) three year old male, Pinnacles National Park, California

Juergen Freund / Spiny devilfish / Bearded ghoul fish (Inimicus didactylus) well hidden on the coral rubble. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Paddle-flap Scorpionfish (Rhinopias eschmeyeri). resting on seabed, Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Ambon scorpionfish (Pteroidichthys amboinensis). Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Humpback / Devil scorpionfish (Scorpaenopsis diabolus) on the sand. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Ambon scorpionfish (Pteroidichthys amboinensis). Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Giant frogfish (Antennarius commerson) on pieces of coral. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Paddle-flap scorpionfish (Rhinopias eschmeyeri). Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Yellow Lacy / Weedy scorpionfish (Rhinopias aphanes). Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Yellow Lacy / Weedy scorpionfish (Rhinopias aphanes). Lembeh Strait, North Sulawesi, Indonesia

Hiroya Minakuchi / Frogfish (Antennariidae) face, Borneo, Malaysia

Juergen Freund / Spiny devilfish / Bearded ghoul fish (Inimicus didactylus). Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Yellow Lacy / Weedy scorpionfish (Rhinopias aphanes) on the sea bed. Lembeh Strait, North Sulawesi, Indonesia