David Fleetham / Sargasum frogfish (Histiro histiro) near the surface floating on discarded polypropylene rope, Hawaii.

Chris & Monique Fallows / Long-beaked common dolphin (Delphinus capensis) breaching in front of large ship during sardine run, East London, South Africa, June.

Claudio Contreras / Keel billed toucan (Ramphastos sulfuratus) calling, captive.

Juan Carlos Munoz,Juan Carlos Munoz / Black throated diver (Gavia arctica) displaying, Norway, June.

Cyril Ruoso / Common Frog (Rana temporaria) group on ice covering parts of breeding pond at around 2000 meters, Alps, France

Denis-Huot / Bottlenose dolphin (Tursiops truncatus) playing in the waves of an oil tanker, Port Aransas, Texas, USA

Denis-Huot / Bottlenose dolphin (Tursiops truncatus) playing in the waves of an oil tanker, Port Aransas, Texas, USA

Franco Banfi / Shadow of Dhoni, characteristic Maldivian boat over reef, Maldives, Indian Ocean. No release available.

Solvin Zankl / Army ant (Dorylus sp.) close-up of male. Specimen photographed using digital focus stacking

Solvin Zankl / Fire Ant (Solenopsis geminata) head of a major worker with mandibles used for opening seeds. Specimen photographed using digital focus stacking

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) leaping in front of a cargo ship, Sado Estuary, Portugal, September

Bryan and Cherry Alexander / Gentoo penguin (Pygoscelis papua) standing on volcanic beach at Whalers Bay, with tourists in kayak beyond. Deception Island, South Shetland Islands, Antarctica, 2009.

Peter Cairns / 2020VISION / Osprey (Pandion haliaeetus) in flight, fishing at dawn, Rothiemurchus forest, Cairngorms NP, Scotland, UK, July. Photographer quote: ""This female, caught at first light, has two hungry chicks waiting...

Juergen Freund / Kite fisherman using a kite and fishing line. Skipjack tuna are a common catch. Sulawesi, Indonesia, November 2009.

Juergen Freund / Kite fisherman using a kite and fishing line. Skipjack tuna are a common catch. Sulawesi, Indonesia, November 2009.

Roberto Rinaldi / Stern of crude oil super-tanker "Milford Haven", which sank on April 14th, 1991 after three days of fire. Genoa, Italy, 2007.

Bryan and Cherry Alexander / Tourists on icebreaker "Professor Multanovskiy" watching Polar bear (Ursus maritimus) in pack ice. Svalbard, Norway, 2004.

Bryan and Cherry Alexander / Commercial fisherman removing Atlantic salmon (Salmo salar) from stake net. St Cyrus Bay, Scotland, 1982.

Tim Laman / Dog walking along bridge walkway, and homes in Waifoy Village, Mayalibit Bay, Waigeo Island, West Papua, Indonesia, April 2007

Michel Roggo / Looking down at Chubb (Leuciscus cephalus) at surface with reflection of bridge, Rhine River, Switzerland, 1993. No release available.

Jeff Rotman / Nostril and mouth parts of Bamboo shark (Chiloscyllium punctatum) Perth, Australia, Indian Ocean

Juergen Freund / Boat at surface tracking Nautilus movements with a mobile receiver, off Queensland, Australia, 2007

Juergen Freund / Richard Fitzpatrick releases Grey reef shark {Carcharhinus amblyrhynchos} after inserting transmitter into its belly, as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Emanuele Biggi / Animal body parts including monkey and snake heads, for sale at Belen market in Iquitos, Peru. . July 2014

Emanuele Biggi / Animal body parts including crocodilian skull, for sale at market, Belen markets of Iquitos, Peru. July 2014.

Emanuele Biggi / Animal body parts including snakes and pirhanas for sale at Belen market in Iquitos, Peru. July 2014

Staffan Widstrand / Wild Wonders of China / Black-headed sibia (Heterophasia melanoleuca) perched on moss covered parts of a tree in Baihualing, Gaoligongshan, Yunnan, China

Ashley Cooper / King penguin (Aptenodytes patagonicus) and Antarctic fur seal (Arctocephalus gazella), by the old whaling station at Grytviken on South Georgia. In its 58 years of operation, it handled 53,761 slaught...

Emanuele Biggi / Various parts of South American yellow-footed tortoises (Chelonoidis denticulata), Vulnerable species, and terrapin species from the Amazon basin are sold for food in the Belen market, Iquitos, Peru....

David Fleetham / Street stall on overpass selling Tiger (Panthera tigris) paws and other animal products for use in traditional Chinese medicine. Guangzhou, South Western China.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Daniel Heuclin / Voodoo fetish market with various animal body parts for sale, Togo. February 2018.

Charlie Summers / Pink / Humpback Salmon (Oncorhynchus gorbuscha) male, dying with parts of flesh rotting, trying to make it upstream to its spawning grounds, Ketchikan Creek in the middle of Ketchikan, Alaska.

Terry Whittaker / Sand cat (Felis margarita) captive, occurs in North Africa, Arabian Peninsula and parts of Central Asia.

Terry Whittaker / Sand cat (Felis margarita) captive, occurs in North Africa, Arabian Peninsula and parts of Central Asia.

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined Emerald Moth (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Crossways Preserve, Montgomery County, Philadelphia,...

Nick Upton / Hedgehog (Erinaceus europaeus) faeces on a garden path with undigested insect parts visible, Chippenham, Wiltshire, UK, September.

Nick Upton / Hedgehog (Erinaceus europaeus) faeces on a garden path with undigested insect parts visible, Chippenham, Wiltshire, UK, September.

Nick Upton / Hedgehog (Erinaceus europaeus) faeces on a suburban lawn with undigested insect parts visible, Chippenham, Wiltshire, UK, September.

Robert Thompson / Pope's pit viper (Trimeresurus popeorum) native to northern India, Southeast Asia, and parts of Indonesia.

Robert Thompson / Pope's pit viper (Trimeresurus popeorum) native to northern India, Southeast Asia, and parts of Indonesia.

Steve Downer / Close-up larva of Fruit fly (Drosophila melanogaster) showing mouth parts. UK

Inaki Relanzon / Mako shark (Isurus oxyrinchus) head and parts in bloody bucket, fish market, Bali, Indonesia, August 2014. Vulnerable species.

Juan Carlos Munoz / Shop selling animal body parts for Chinese medicine, Kunming, Yunnan, China, April 2016.

Jen Guyton / Marketplace in Mbabane selling animal body parts including sea star, the shell of a sea turtle, a snake skin, porcupine quills, a desiccated blowfish, the skin of a hedgehog, a coral, the fur of a spo...

Jen Guyton / Marketplace in Mbabane selling animal body parts including sea star, the shell of a sea turtle, a snake skin, porcupine quills, a desiccated blowfish, the skin of a hedgehog, a coral, the fur of a spo...

Jen Guyton / Marketplace in Mbabane selling animal body parts including sea star, the shell of a sea turtle, a snake skin, porcupine quills, a desiccated blowfish, the skin of a hedgehog, a coral, the fur of a spo...

Jen Guyton / Marketplace in Mbabane selling animal body parts including sea star, the shell of a sea turtle, a snake skin, porcupine quills, a desiccated blowfish, the skin of a hedgehog, a coral, the fur of a spo...

Jen Guyton / Marketplace in Mbabane selling animal body parts including sea star, the shell of a sea turtle, a snake skin, porcupine quills, a desiccated blowfish, the skin of a hedgehog, a coral, the fur of a spo...

Jen Guyton / Marketplace in Mbabane selling animal body parts including sea star, the shell of a sea turtle, a snake skin, porcupine quills, a desiccated blowfish, the skin of a hedgehog, a coral, the fur of a spo...

Cyril Ruoso / Common frog (Rana temporaria) group on ice covering parts of breeding pond, Alps, France, May.

Cyril Ruoso / Common frog (Rana temporaria) group on ice covering parts of breeding pond, Alps, France, May.

Chris Mattison / Mandarin rat snake (Euprepiophis mandarinus) on white background. Captive, native to China and parts of SE Asia.

Chris Mattison / Mandarin rat snake (Euprepiophis mandarinus) on white background. Captive, native to China and parts of SE Asia.

Chris Mattison / Mandarin rat snake (Euprepiophis mandarinus) close up portrait. Captive, native to China and parts of South East Asia.

Cheryl-Samantha Owen / Scientists taking a small sample or 'fin clip' from a Clanwilliam sandfish (Labeo seeberi) for genetic analysis at the University of Stellenbosch. The conservation management plan for this species aim...

Roland Seitre / Animal parts for sale in market for traditional Chinese medicine, Chengdu, Sichuan Province, China.

Roland Seitre / Animal parts for sale in market for traditional Chinese medicine, Chengdu, Sichuan Province, China.

Alex Mustard / High magnification photo of Nudibranch (Nembrotha kubaryana), showing orange mouth parts and sensory rhinophores, and green gills (out of focus) Bitung, North Sulawesi, Indonesia. Lembeh Strait, Moluc...

Eric Baccega / Male stag beetle (Lucanus cervus), close-up on mouth parts and antennae, Alsace, France, May

Eric Baccega / Male stag beetle (Lucanus cervus), close-up on mouth parts and antennae, Alsace, France, May

Michael Pitts / Hawaiian Monk seal (Monachus schauinslandi) sleeping on the deck of a wrecked barge. Midway atoll. Central Pacific.

Onne van der Wal / Dolphins swim by racers during Key West Race Week 2013, Gulf of Mexico, Florida. All non-editorial uses must be cleared individually.

David Tipling / Prow of boat with head of Frigatebird from Trobriand Islands in the Pacific.

David Tipling / The Conference of the Birds byHabiballah. Detail from page of a manuscript of the Mantiq al-Tayr (The Language of the Birds) by Farid al-Din Attar, circa 1600, Safavid, Isfahan, Iran.

Tom Marshall / Licenced Wildlife Trust vaccinator preparing badger bovine TB vaccine in the field. Vaccine is 'live' and mixed in two parts just before administration. Cheshire, England, UK, May 2013.

Danny Green / Adult male Sparrowhawk (Accipiter nisus) perched on a moss covered post, Dumfries, Scotland, UK, February.

Danny Green / Male Bengal tiger (Panthera tigris tigris), Bandhavgarh National Park, India, February.

Nick Upton / Mallard drake (Anas platyrhynchos) head portrait, Wiltshire, UK, January.

Daniel Heuclin / Pale-throated sloth / Aï (Bradypus tridactylus) climbing along branch - close up of claws, French Guiana.

Florian Möllers / White stork (Ciconia ciconia) captive, red legs of adult bird, close-up, May, Vogelpark Marlow, Germany, May.

Dave Watts / Bateleur (Terathopius ecaudatus) showing nictitating membrane. Kgalagadi National Park, South Africa

Dave Watts / Bateleur (Terathopius ecaudatus) showing nictitating membrane. Kgalagadi National Park, South Africa

Daniel Heuclin / Sumatran elephant (Elephas maximus sumatranus) portrait, Sumatra. Critically endangered

Colin Varndell / Cormorants (Phalacrocorax carbo) 'wing drying' Radipole lake, Weymouth, Dorset, UK. March 2013

Claudio Contreras / Magnificent frigatebird (Fregata magnificens) on top of cardon cactus (Pachycereus pringlei), El Requeson beach, Bahia Concepcion, Sea of Cortez (Gulf of California), Mexico, April

Claudio Contreras / Mountain lion (Puma concolor) yawning, captive.

Claudio Contreras / Gulf grouper (Mycteroperca jordani), IUCN Endangered, Cabo Pulmo National Park, Sea of Cortez (Gulf of California), Mexico, July

Claudio Contreras / Keel billed toucan (Ramphastos sulfuratus), captive.

Claudio Contreras / Keel billed toucan (Ramphastos sulfuratus), captive.

Claudio Contreras / Keel billed toucan (Ramphastos sulfuratus) preening, captive.

Claudio Contreras / Keel billed toucan (Ramphastos sulfuratus), captive.

Claudio Contreras / Andean condor (Vultur gryphus), IUCN Near Threatened, captive.

Claudio Contreras / Yellow legged gull (Larus livens) taking off, Santispac beach, Bahia Concepcion, Sea of Cortez (Gulf of California), Mexico, May

Claudio Contreras / Yellow legged gull (Larus livens), Santispac beach, Bahia Concepcion, Sea of Cortez (Gulf of California), Mexico, May