Norbert Wu / Triplewart Seadevil (Cryptopsaras couesii) a deep sea anglerfish uses fishing pole with luminous lure attracts prey in the deep sea

Norbert Wu / Netdevil (Borophryne apogon) deep sea species female with attached male Dwarf parasitic males permanently attach to females which solves problem of males and females finding one another in the deep se...

Norbert Wu / Devil Angler (Linophryne indica) fish, dwarf male attaches to large female and becomes a parasite

Norbert Wu / Triplewart Seadevil (Cryptopsaras couesii) a deep sea anglerfish uses fishing pole with luminous lure attracts prey

Norbert Wu / Murray's Abyssal Anglerfish (Melanocetus murrayi) juvenile, note the light organ used to attract prey in the deep sea

Fred Bavendam / Red-lipped Batfish (Ogcocephalus darwini) portrait, on the ocean floor, Cocos Island, Costa Rica

Fred Bavendam / Striated Frogfish (Antennarius striatus) pair sitting in a clump of algae which helps conceal their presence from prey, Lembeh Strait, Indonesia

Fred Bavendam / Tasselled Frogfish (Rhycherus filamentosus) swimming and clearly showing its lure, Edithburgh, South Australia

Fred Bavendam / Cryptic Frogfish (Histiophryne cryptacanthus) portrait, Edithburgh, South Australia

Gary Bell/ Oceanwide / Red Handfish (Brachionichthys politus), Tasmania, Australia

Gary Bell/ Oceanwide / Tasselled Frogfish (Rhycherus filamentosus), Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Gary Bell/ Oceanwide / Tasselled Frogfish (Rhycherus filamentosus) showing lure, Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Gary Bell/ Oceanwide / Tasselled Frogfish (Rhycherus filamentosus) showing lure, Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Gary Bell/ Oceanwide / Tasselled Frogfish (Rhycherus filamentosus) showing lure, Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Gary Bell/ Oceanwide / Prickly Frogfish (Echinophryne crassispina), Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Gary Bell/ Oceanwide / Prickly Frogfish (Echinophryne crassispina), Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Gary Bell/ Oceanwide / Red Handfish (Brachionichthys politus), Tasmania, Australia

Gary Bell/ Oceanwide / Tasselled Frogfish (Rhycherus filamentosus) showing lure, Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Striated Frogfish (Antennarius striatus), Anilao, Philippines

Gary Bell/ Oceanwide / Frogfish (Antennarius sp) pair, Anilao, Philippines

Gary Bell/ Oceanwide / Painted Frogfish (Antennarius pictus), Anilao, Philippines

Gary Bell/ Oceanwide / Warty Frogfish (Antennarius maculatus), Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii) in reef, Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Painted Frogfish (Antennarius pictus), Anilao, Philippines

Gary Bell/ Oceanwide / Commerson's Frogfish (Antennarius commersonii), Anilao, Philippines

Gary Bell/ Oceanwide / Striated Frogfish (Antennarius striatus), Anilao, Philippines

Gary Bell/ Oceanwide / Striated Frogfish (Antennarius striatus), Anilao, Philippines

Gary Bell/ Oceanwide / Striated Frogfish (Antennarius striatus), Anilao, Philippines

Gary Bell/ Oceanwide / Warty Frogfish (Antennarius maculatus), Tulamben, Bali, Indonesia

Norbert Wu / Striated Frogfish (Antennarius striatus) camouflaged and using its lure to attract prey, West Palm Beach, Florida

Norbert Wu / Polka-dot Batfish (Ogcocephalus radiatus), West Palm Beach, Florida

Birgitte Wilms / Frogfish (Antennarius sp), Indonesia

Birgitte Wilms / Warty Frogfish (Antennarius maculatus), Indonesia

Birgitte Wilms / Warty Frogfish (Antennarius maculatus) with lure extended, Indonesia

Birgitte Wilms / Warty Frogfish (Antennarius maculatus) with lure extended, Indonesia

Birgitte Wilms / Warty Frogfish (Antennarius maculatus), Indonesia

Birgitte Wilms / Frogfish (Antennarius sp), Indonesia

Birgitte Wilms / Frogfish (Antennarius sp) camouflaged in reef, Indonesia

Birgitte Wilms / Frogfish (Antennarius sp), camouflaged in coral reef, Papua New Guinea

Birgitte Wilms / Frogfish (Antennarius sp), Papua New Guinea

Birgitte Wilms / Frogfish (Antennarius sp), Indonesia

DAVID TIPLING / Dead pike hung from tree by angler (Esox lucius)

Alex Mustard / Orange painted frogfish (Antennarius pictus) resting between the venemous spines of a Fire urchin (Asthenosoma varium), Batangas marine protected area, Luzon, Philippines. Verde Island Passages, Pacif...

Joel Sartore / Photo Ark / Painted frogfish (Antennarius pictus) portrait, Omaha's Henry Doorly Zoo and Aquarium. Captive, occurs in Red Sea and Indo-Pacific.

Alex Mustard / Painted frogfish (Antennarius pictus) resting among finger sponges, yawning, Bitung, North Sulawesi, Indonesia, Lembeh Strait.

Alex Mustard / Orange painted frogfish (Antennarius pictus) lying in wait on seabed, disguised as an orange sponge, Bitung, North Sulawesi, Lembeh Strait, Molucca Sea.

Alex Mustard / Yellow painted frogfish (Antennarius pictus) resting on Sponge fingers, yawning, Bitung, North Sulawesi, Lembeh Strait, Molucca Sea.

Alex Mustard / Painted frogfish (Antennarius pictus) camouflaged among a Sponge on seabed, Bitung, North Sulawesi, Indonesia, Lembeh Strait, Molucca Sea.

David Fleetham / Commerson's frogfish (Antennarius commersoni) juvenile sheltering among spines of Slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii, Pacific Ocean.

Espen Bergersen / Common monkfish (Lophius piscatorius) inside of mouth detail, Nordland, Norway. August.

David Fleetham / Commerson's frogfish (Antennarius commerson) swimming over reef, Hawaii, Pacific Ocean..

Alex Mustard / Warty frogfish (Antennarius maculatus) yawning in its hiding place amongst white sponges, Bitung, North Sulawesi, Indonesia, Molucca Sea.

Alex Mustard / Orange painted frogfish (Antennarius pictus) hiding on the seabed, next to photographers thumb for scale, Dauin Marine Protected Area, Philippines, Bohol Sea, Pacific Ocean.

David Fleetham / Commerson's frogfish (Antennarius commerson), well camouflaged, perched at bow of shipwreck of Alma Jane off Puerto Galera, Mindoro, Philippines, South China Sea, Pacific Ocean.

David Fleetham / Commerson's frogfish (Antennarius commerson) perched on tube sponge, Philippines, Pacific Ocean.

David Fleetham / Painted frogfish (Antennarius pictus) portrait, Sipidan, Malaysia, Celebes Sea.

David Fleetham / Commerson's frogfish (Antennarius commersonii) portrait, Hawaii, Pacific Ocean.

Henley Spiers / Anglerfish (Lophius piscatorius) camouflaged against the rocks on seabed, Shetland, Scotland, North Sea, UK. May.

Franco Banfi / Anglerfish / Monkfish (Lophius piscatorius) swimming over rocky seabed, Vevang, Norway, Atlantic Ocean.

Franco Banfi / Anglerfish / Monkfish (Lophius piscatorius) camouflaged on seabed, Vevang, Norway, Atlantic Ocean.

Franco Banfi / Scuba diver face to face with Anglerfish / Monkfish (Lophius piscatorius), Vevang, Norway, Atlantic Ocean.

Alex Mustard / Detail of the eye of an Anglerfish (Lophius piscatorius). Chesil Beach, Dorset, UK, English Channel.

Alex Mustard / Face of an Anglerfish (Lophius piscatorius), Chesil Beach, Dorset, UK, English Channel.

Franco Banfi / Monkfish / Angler (Lophius piscatorius) swimming over seabed, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler (Lophius piscatorius) camouflaged against seabed with scuba diver in distance, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Tony Wu / Painted frogfish (Antennarius pictus) juvenile, about 3cm in length, Kanagawa, Japan.

Magnus Lundgren / Monkfish (Lophius piscatorius) photographed at night, Saltstraumen, Bodö, Norway. Magnus

Linda Pitkin / Painted frogfish (Antennarius pictus) Lembeh Strait, North Sulawesi, Indonesia.

Linda Pitkin / Warty or Clown frogfish (Antennarius maculatus) Lembeh Strait, North Sulawesi, Indonesia.

Linda Pitkin / Warty or Clown frogfish (Antennarius maculatus), juvenile - said to mimic a toxic nudibranch. Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / Portrait of a Giant frogfish (Antennarius commersoni) waiting in ambush hidden amongst sponges growing on a coral reef. Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical...