Gary Bell/ Oceanwide / Leopard Flounder (Bothus pantherinus) camouflaged on ocean floor, Anilao, Philippines

Alex Mustard / Eyes of Margined sole fish (Brachirus heterolapis) on its camouflaged body. Saonek Island, Raja Ampat, West Papua, Indonesia. Tropical West Pacific Ocean. Dampier Strait.

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

Flip Nicklin / Flatfish (Pleuronectiformes) camouflaged on ocean floor, California

Sue Daly / Dover sole fish on seabed {Solea solea} Jersey, Channel Is, UK

David Fleetham / Black-tip / banded sole (Soleichthys heterorhinos) moving over the seabed at night , Indonesia.

David Fleetham / Peacock sole (Pardachirus pavoninus) moving over the reef at night, Komodo, Indonesia.

David Fleetham / Black-tip sole (Soleichthys heterorhinos) swimming, Komodo, Indonesia.

David Fleetham / Black-tip sole (Soleichthys heterorhinos) on seabed, Komodo, Indonesia.

Jean E. Roche / Juvenile Sole (Solea vulgaris) fish fry, caught for scientific research by Tour du Valat. La Gacholle, Camargue, France.

Sue Daly / Portrait of a Sole (Solea solea) swimming over the seabed, filmed at night, Sark, British Channel Islands, UK, October

Sue Daly / Portrait of a Sole (Solea solea) swimming over the seabed, filmed at night, Sark, British Channel Islands, UK, October.

Sue Daly / Portrait of a Sole (Solea solea) camouflaged against the seabed, filmed at night, Sark, British Channel Islands, UK, October.

Solvin Zankl / Flatfish (Soleidae) larva with asymmetric body. When the larva develops to an adult asymmetric vertebrate, the right eye migrates from the right side of the body to the left where it 'joins' the left...

Jeff Rotman / Moses Sole (Pardachirus marmoratus) camouflaged in sand, Sinai, Egypt, Red Sea.

Pascal Kobeh / Rock sole (Lepidopsetta bilineata), Alaska, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Rock sole (Lepidopsetta bilineata), Alaska, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Close up of head of Rock sole (Lepidopsetta bilineata) from above, Alaska, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Alaska turbot (Pleuronichthys coenosus) camouflaged on sea floor, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Moses sole (Pardachirus marmoratus) with a spine of sea urchin stuck in body, Daymaniyat islands, Oman. Gulf of Oman.

MYN / Seth Patterson / Blackcheek Tonguefish (Symphurus plagiusa) viewed from above, Lower Laguna Madre, South Padre Island, Cameron County, Lower Rio Grande Valley, Texas, United States of America, North America, May. Meet...

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

Norbert Wu / Leopard Flounder (Bothus pantherinus) camouflaged on ocean floor, Ambon, Indonesia

Norbert Wu / Peacock Sole (Pardachirus pavoninus) camouflaged on ocean floor, Ambon, Indonesia

Norbert Wu / Leopard Flounder (Bothus pantherinus) camouflaged on ocean floor, Ambon, Indonesia

Norbert Wu / Ocellated Flounder (Pseudorhombus dupliciocellatus) camouflaged on ocean floor, Ambon, Indonesia

Alex Mustard / An Atlantic long arm octopus (Octopus defilippi) swims across the seabed. This is a typical swimming posture for long arm octopus, but it has been suggested as mimicking a poisonous sole in the mimic...

Alex Mustard / A mimic octopus (Thaumoctopus mimicus) makes a 'poisonous sole' impression, Java Sea, Puri Jati, Bali, Indonesia. South East Asia, Java Sea

Sue Daly / Dover sole (Solea solea) camouflaged on sea floor, Channel Islands, UK August

Sue Daly / Dover sole (Solea solea) perfectly camouflaged on sea bed, Channel Islands, UK July

Sue Daly / Dover sole (Solea solea) close up of skin and face, Channel Islands, UK July

Sue Daly / Dover sole (Solea solea) close up of skin and face, Channel Islands, UK July

Sue Daly / Dover sole (Solea solea) close up of skin and face, Channel Islands, UK July

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) catching a Dover sole (Solea vulgaris) Sado Estuary, Portugal, October

Sue Daly / Dover Sole (Solea solea) with Ichthyobdellid leeches. Channel Islands, UK, August.

Sue Daly / Dover Sole (Solea solea) with Ichthyobdellid leeches. Channel Islands, UK, August.

Sue Daly / Dover Sole (Solea solea) with Ichthyobdellid leeches. Channel Islands, UK, August.

Pete Oxford / Peacock Flounder (Bothus lunatus) camouflaged on ocean floor, Bonaire, Netherlands Antilles, Caribbean

Juergen Freund / Carpet sole (Liachirus melanospilus) camouflaged on seabed, Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Carpet sole (Liachirus melanospilus) camouflaged on seabed, Lembeh Strait, North Sulawesi, Indonesia

Sue Daly / English sole (Parophrys / Pleuronectes vetulus) Pacific ocean, Canada, August

Fred Bavendam / Wavyband Sole (Pseudaesopia japonica) camouflaged on ocean floor, Komodo Island, Indonesia

Fred Bavendam / Peacock Sole (Pardachirus pavoninus) camouflaged on ocean floor, Ambon, Indonesia

Fred Bavendam / Ocellated Flounder (Pseudorhombus dupliciocellatus) camouflaged on ocean floor, Milne Bay, Papua New Guinea

Scott Leslie / Winter Flounder (Pleuronectes americanus) juvenile camouflaged in sand, Nova Scotia, Canada

Florian Graner / Lemon sole (Microstomus kitt) camouflaged against sea-floor, Norway

Luciano Candisani / Flowery Flounder (Bothus mancus) camouflaged against ocean floor, Rocas Atoll, Brazil

Nick Turner / Dover sole {Solea solea} caught by Marine Stewardship Council drift net fishery, Hastings, UK

Kim Taylor / Young Sole {Solea solea} about 40-days after hatching, Atlantic

Birgitte Wilms / Lefteye Flounder (Bothus sp) portrait, camouflaged against sandy ocean floor, 60 feet deep, Solomon Islands

Chris Newbert / Lefteye Flounder (Bothus sp) eyes peering from sand, 20 feet deep, Solomon Islands

Norbert Wu / Peacock Sole (Pardachirus pavoninus) buries itself in sand during the day and releases a milky toxin that stuns predators, Sulawesi, Indonesia

Juergen Freund / Sole camouflaged on sea bed. (Pardachirus melanospilas) Indo-Pacific.

Jaymi Heimbuch / Artists working on sculptures made from reclaimed flip-flops, Ocean Sole, Nairobi, Kenya

Jaymi Heimbuch / Artist working on sculptures made from reclaimed flip-flops, Ocean Sole, Nairobi, Kenya

Jaymi Heimbuch / Artist working on sculptures made from reclaimed flip-flops, Ocean Sole, Nairobi, Kenya

Jaymi Heimbuch / Artists working on sculptures made from reclaimed flip-flops, Ocean Sole, Nairobi, Kenya

Pete Oxford / Peacock Flounder (Bothus lunatus) camouflaged on ocean floor, Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Peacock Flounder (Bothus lunatus) camouflaged on ocean floor, Bonaire, Netherlands Antilles, Caribbean

Roberto Rinaldi / Common / Dover Sole (Solea solea), Messina, Italy.

Sergio Hanquet / Bastard sole (Microchirus azevia) camouflaged on seabed, Tenerife, Canary Islands, Atlantic Ocean.

Sergio Hanquet / Bastard sole (Microchirus azevia) camouflaged on seabed, Tenerife, Canary Islands, Atlantic Ocean.

Shane Gross / Rock sole (Lepidopsetta bilineata) larval-stage, portrait, Salish Sea, Vancouver Island, British Columbia, Canada.

Shane Gross / Sand sole (Psettichthys melanostictus) larval-stage, portrait, Salish Sea, Vancouver Island, British Columbia, Canada.

Fred Bavendam / Mimic octopus (Thaumoctopus mimicus) gliding across the ocean floor in a flattened posture with its arms trailing, possibly using this posture to mimic a Flounder or Sole, Bali, Indonesia, Indo-Pacifi...

Shane Gross / Lion's mane jellyfish (Cyanea capillata) with commensal juvenile Prowfish (Zaprora silenus) using it for protection and providing sole source of food in its juvenile stage, Prince William Sound,...

Shane Gross / Lion's mane jellyfish (Cyanea capillata) with commensal juvenile Prowfish (Zaprora silenus) using it for protection and providing sole source of food in its juvenile stage, Prince William Sound,...

Shane Gross / Lion's mane jellyfish (Cyanea capillata) with commensal juvenile Prowfish (Zaprora silenus) using it for protection. The jelly also provides the sole source of food for the prowfish in its juveni...

Joel Sartore / Photo Ark / Black-cheeked tongue fish (Symphurus plagiusa) portrait, Gulf Specimen Marine Lab and Aquarium. Captive.

Joel Sartore / Photo Ark / Black-cheeked tongue fish (Symphurus plagiusa) portrait, Gulf Specimen Marine Lab and Aquarium. Captive.

Joel Sartore / Photo Ark / Black-cheeked tongue fish (Symphurus plagiusa) head portrait, Gulf Specimen Marine Lab and Aquarium. Captive.

Franco Banfi / Witch flounder (Glyptocephalus cynoglossus) amongst seabed detritus, Flatanger, Norway, North Atlantic Ocean.

Sergio Hanquet / Bastard sole (Microchirus azevia) camouflaged on seabed, Canary Islands, Tenerife.

Shane Gross / English sole (Parophrys vetulus) close-up face portrait showing protruding eyes. Vancouver Island, British Columbia, Canada

Sergio Hanquet / Foureyed sole (Microchirus ocellatus) on sea floor, Tenerife, Canary Islands.

Franco Banfi / Four-eyed sole (Microchirus ocellatus) Puolo Bay, Punta Campanella Marine Protected Area, Costa Amalfitana, Italy, Tyrrhenian Sea, Mediterranean.

Frederique Olivier / Pacific dover sole (Microstomus pacificus) moving on sand, Marovo Lagoon, Solomon Islands.

Philippe Clement / Shrimpers sorting catch from shrimp drag net / dragnet on the beach caught along the North Sea coast at dusk, Belgium. June

Philippe Clement / Shrimper sorting catch from shrimp drag net on the beach caught along the North Sea coast, Belgium. June

Philippe Clement / Shrimper's catch from shrimp drag net on the beach showing shrimps, crabs and fish like sole, lesser weever, mackerel caught along the North Sea coast, Belgium. June