John Chan / Elegant tern (Thalasseus elegans) with a broken wing, attempting to take off, Southern California, USA, April.

John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, Southern California, USA, April.

Jeff Foott / Jaguar (Panthera onca) male, hunting Capybara (Hydrochoerus hydrochaeris). The capybara jumping away has cut the nose of the Jaguar with its toenail. Cuiaba River, Pantanal Matogrossense National Park...

Tui De Roy / Short tailed albatross (Phoebastria albatrus) subadult with fish-hook and monofilament line embedded in throat. Tsubamezaki, Torishima Island, Japan. December.

Tui De Roy / Short tailed albatross (Phoebastria albatrus) subadults courting, one with fish-hook and monofilament line embedded in throat. Tsubamezaki, Torishima Island, Japan. December.

Tui De Roy / Waved albatross (Phoebastria irrorata) on nest, with fish hook in throat, Punta Suarez, Espanola Island, Galapagos.

Jen Guyton / Meerkat (Suricata suricatta) barely alive, with Cape porcupine (Hystrix africaeaustralis) quills through his abdomen. Kalahari Desert, South Africa.

Tony Wu / Humpback whale (Megaptera novaeangliae) female breaching together with her male calf. The calf had a large wound on his left peduncle area, one that appeared to be the result of a large bite, Vava'u,...

Tony Wu / Humpback whale (Megaptera novaeangliae) calf 'Tahafa' male with injured pectoral fin and scarred body, with mother. Vava'u, Tonga, Pacific Ocean.

Wim van den Heever / Lion (Panthera leo) male with scars photographed with side-lit spot light at night. Greater Kruger National Park, South Africa, April.

Jabruson Motion / Juvenile Eastern lowland gorillas (Gorilla beringei graueri) with a missing hand, rolling forward to join another, Kahuzi-Biega National Park, South Kivu, Democratic Republic of Congo.

Eric Baccega / Young man from the Bodi Tribe having new scars made on his chest with razor blade, to make decorative skin scarifications. Omo Valley, Ethiopia, March 2015.

Mark Taylor / Red toy poodle looking up at camera an sticking out tongue.

Jabruson Motion / Female African forest elephant (Loxodonta cyclotis) at a mineral dig with a baby with an injured leg, chasing other adolescent elephants away, Dzanga Bai, Daznga-Ndoki National Park, Sangha-Mbaere Pre...

Jabruson Motion / Baby African forest elephant (Loxodonta cyclotis) with an injured leg following an adult female, Dzanga Bai, Daznga-Ndoki National Park, Sangha-Mbaere Prefecture, Central African Republic.

Jabruson Motion / Baby African forest elephant (Loxodonta cyclotis) with an injured leg at a mineral hole, pushed away by an adult female, Dzanga Bai, Daznga-Ndoki National Park, Sangha-Mbaere Prefecture, Central Afric...

Jabruson Motion / Female African forest elephant (Loxodonta cyclotis) with a baby with an injured leg, Dzanga Bai, Daznga-Ndoki National Park, Sangha-Mbaere Prefecture, Central African Republic.

David Tipling / Turtle Dove (Streptopelia turtur) illegally shot, at vets, BirdLife Malta Springwatch Camp, Malta, April 2013

Jurgen Freund,Jurgen Freund / CT scan of injured Green turtle 'Angie' (Chelonia mydas) from the Cairns Turtle Rehabilitation Centre, Cairns Diagnostic Imaging. Queensland, Australia

Jurgen Freund,Jurgen Freund / CT scan of injured Green turtle 'Angie' (Chelonia mydas) from the Cairns Turtle Rehabilitation Centre, Cairns Diagnostic Imaging. Queensland, Australia

Jurgen Freund / Spectacled flying fox (Pteropus conspicillatus) casualty of paralytic tick (Ixodes holocyclus) bite being cared for on site of colony by Jenny Mclean, North Queensland, Australia, November 2012

XI ZHINONG / Grey wolf (Canis lupus) chasing a wounded tibetan wild ass (Equus kiang) Kekexili, Qinghai, China, December.

XI ZHINONG / Grey Wolves (Canis lupus) hunting a wounded Tibetan wild ass (Equus kiang) Kekexili, Qinghai, China, December.

Carol Walker / Lusitano horse, bull fighter mounted on grey stallion, in this type of bull fighting neither horse nor bull are injured, Portugal, May 2011, model released

Petra Wegner / Cavalier King Charles Spaniel, tricolour, getting teeth brushed with oral cleaner, model released

Lisa Hoffner / A baby orphan Elephant (Loxodonta africana), named Murka, wounded by a poacher's spear is comforted by the touch of another elephant's trunk from outside its pen. David Sheldrick Wildlife Trust Eleph...

Alex Mustard / Male Great white shark (Carcharodon carcharias) showing scars from hunting, Guadalupe Island, Mexico, Pacific Ocean.

Bence Mate / Keel-billed Toucan (Ramphastos sulfuratus) in aggressive encounter with a Montezuma Oropendola (Psarocolius montezuma), Laguna del Lagarto, Santa Rita, Costa Rica

Tim Laman / Californian sealions (Zalophus californianus), one with fishing wire caught round its neck. Monterey Bay, California.

Laurent Geslin / Young Benna woman looking after cattle and showing the scars on her back, these are inflicted on teenage girls by their brothers and are considered a mark of beauty and bravery, the girls provoke thei...

Laurent Geslin / Young Benna woman looking after cattle and showing the scars on her back, these are inflicted on teenage girls by their brothers and are considered a mark of beauty and bravery, the girls provoke thei...

Doug Perrine / Great white shark {Carcharodon carcharias} just below surface, Gansbaai, South Africa

Anup Shah / Topi with only one horn {Damaliscus lunatus korrigum} Masai Mara reserve, Kenya

Doug Allan / Emperor penguin {Aptenodytes forsteri} wounded in attack by Leopard seal, Antarctica

Sue Flood / Beluga whales caught in ice hole wounded from Polar bear attack. Canadian high arctic. June 1999

Pete Oxford / King Penguin {Aptenodytes patagoni} wounded and covered in blood from Leopard seal attack. Southern Georgia.

Flip Nicklin / Blue Whale (Balaenoptera musculus) fatally injured in collision with ship and subsequently found by research vessel, Santa Barbara Channel, California

D. Parer & E. Parer-Cook / Platypus (Ornithorhynchus anatinus) female swimming in water with courtship bite mark on tail, eastern Australia

Gerry Ellis / Mountain Gorilla (Gorilla gorilla beringei) female showing finger lost to poacher's trap, Virunga Mountains, Democratic Republic of the Congo

Fred Bavendam / Staghorn Coral (Acropora cervicornis) colony with an extensive bleached area at its center, Kimbe Bay, Papua New Guinea

Fred Bavendam / West Indian Manatee (Trichechus manatus) named Sadie has propeller cuts on the tail, but her calf remains intact, every year boats kill dozens of manatees, Kings Bay, Crystal River, Florida

Mitsuaki Iwago / African Lion (Panthera leo) female attacking wounded Spotted Hyena (Crocuta crocuta), Serengeti National Park, Tanzania

Mitsuaki Iwago / African Lion (Panthera leo) group surrounding wounded Spotted Hyena (Crocuta crocuta), Serengeti National Park, Tanzania

SCOTLAND: The Big Picture / Dead male Grey seal (Halichoerus grypus) which has shot, Shetland Isles, Scotland, UK, March.

John Chan / Juvenile Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, Southern California, USA, April.

John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, attempts to take flight, Southern California, USA, April.

John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, attempts to take flight, Southern California, USA, April.

Jo-Anne McArthur / We Animals / Injured broiler chicken struggling to move. Scandinavia. 2017