Luke Massey / Capped heron ( Pilherodius pileatus) hunting for food, Pantanal, Brazil.

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

Fred Bavendam / Flowery Flounder (Bothus mancus) camouflaged against Coral, Lembeh Strait, Indonesia

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

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

Philip Stephen / Irish registered "Rebecca Elizabeth" shooting her trawl nets to start a new fishing haul on the North Sea lemon sole fishery, May 2008.

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

Pete Oxford / Peacock Flounder (Bothus lunatus) camouflaged in sand, Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Peacock Flounder (Bothus lunatus) swimming over coral reef, 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

Bryan and Cherry Alexander / Inuit woman chewing sealskin sole to soften it for making kamik (boots). Northwest Greenland, 1980.

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

Toby Roxburgh / Lemon sole (Microstomus kitt), gutted and prepared, at Brixham fish auction. Devon, England, UK, 2009.

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) fake eye spots, Lembeh Strait, Indonesia

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

Stephen Belcher / Sumatran Rhinoceros (Dicerorhinus sumatrensis) male, Way Kambas National Park, Sumatra, Indonesia

Chris Newbert / Ocellated Flounder (Pseudorhombus dupliciocellatus) showing eyes and mouth, Papua New Guinea

Ross and Diane Armstrong / New Zealand Flounder (Rhombosolea plebeia) portrait, Northland, New Zealand

Scott Leslie / Winter Flounder (Pleuronectes americanus), Bay of Fundy, Nova Scotia, Canada

Scott Leslie / Winter Flounder (Pleuronectes americanus), Bay of Fundy, Nova Scotia, Canada

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

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

Scott Leslie / Winter Flounder (Pleuronectes americanus) swimming, Nova Scotia, Canada

Robert Valentic / Bandy bandy snake {Vermicella annulata} feeding on its sole diet, a Blind snake {Ramphotyphlops nigrescens} Queensland, Australia

Robert Valentic / Bandy bandy snake {Vermicella annulata} female feeding on its sole diet, a Blind snake {Ramphotyphlops nigrescens} Queensland, Australia

Albert Lleal / Sole (Solea sp) SEM close-up view of scales at 42x magnification

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

Luciano Candisani / Flowery Flounder (Bothus mancus) camouflaged in sand, Rocas Atoll, Brazil

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

Luciano Candisani / Flowery Flounder (Bothus mancus) portrait showing both eyes on the same side of the head, Rocas Atoll, Brazil

Chris Newbert / Blue-finned Ghost Pipefish (Solenostomus cyanopterus) underwater, portrait

Ingo Arndt / European Flounder (Platichthys flesus) eyes, fish is approximately nine centimeters, Helgoland, Germany

Ingo Arndt / European Flounder (Platichthys flesus) approximately nine centimeters, Helgoland, Germany

Ingo Arndt / European Flounder (Platichthys flesus) approximately nine centimeters, Helgoland, Germany

Fred Bavendam / Leopard Flounder (Bothus pantherinus) showing color change, Galapagos Islands, Ecuador

Fred Bavendam / Leopard Flounder (Bothus pantherinus) showing color change, Galapagos Islands, Ecuador

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

Dave Watts / Northern Hairy-nosed Wombat {Lasiorhinus krefftii} sole of hind foot, Endangered, Epping Forest, Queensland, Australia

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

Chris Newbert / Larval Flounder of unknown species is translucent when young, Hawaii

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

Norbert Wu / Speckled-tail Flounder (Engyophrys sanctilaurentia) cleared and stained to show bone (Red) and cartilage (Blue)

Fred Bavendam / Winter Flounder (Pleuronectes americanus) eating a Boreal Squid (Illex illecebrosus), Lubec, Maine

Fred Bavendam / Winter Flounder (Pleuronectes americanus), York, Maine

Jean E. Roche / Plaice {Pleuronectes platessa}Turbot {Psetta maxima} and Sole {Solea solea} in net,

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

Dave Watts / Northern hairy nosed wombat {Lasiorhinus kreffti} feeding on ground, central Queensland, Australia. The only known picture of this Critically Endangered species in the wild from sole population in Epp...

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

Suzi Eszterhas / Grevy's Zebra (Equus grevyi) backside, Lewa Wildlife Conservation Area, northern Kenya

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

Luciano Candisani / Small Flounder on hand, Trindade Island, Brazil