Juergen & Christine Sohns / African Wild Dog (Lycaon pictus) group attacking Cape Warthog (Phacochoerus aethiopicus), Tswalu Game Reserve, South Africa

Tony Heald / African wild dog (Lycaon pictus) portrait. Chobe National Park Botswana. Digitally enhanced sepia image.

Mark Raycroft / Welsh Corgi (Canis familiaris) jumping, North America

Matthew Maran / Red fox (Vulpes vulpes) dog interacting with a vixen in an urban garden. North London, UK. June.

Matthew Maran / Red fox (Vulpes vulpes) dog interacting with a vixen in an urban garden. North London, UK. July.

Nick Hawkins / Chum salmon (Oncorhynchus keta) migrate up a small river near Bella Bella, British Columbia, Canada. September

Bence Mate / African wild dogs (Lycaon pictus) juveniles playing with the leg of an impala, trying to drag it in three different directions. Mkuze, South Africa. Commended in Glanzlichter photo competition 2020.

TJ Rich / Four chocolate working cocker spaniels on wall. Mother and offspring. Monmouth, Monmouthshire, Wales

TJ Rich / Black working cocker spaniel in bluebells, in beech woodland, Micheldever Woods, Hampshire, UK

TJ Rich / Wirehaired daschund, Staffordshire bull terrier and Hungarian viszla in autumn colours, Wiltshire, UK

Robert Valentic / Short-nosed fruit-bat (Cynopterus brachyotis) roosting, Ko Chang Island, Thailand.

Sven Zacek / Sun dog over trees in frosty landscape. Tartumaa, Southern Estonia. December 2015.

Donald M. Jones / Black-tailed Prairie Dog (Cynomys ludovicianus) group, South Dakota

Donald M. Jones / Black-tailed Prairie Dog (Cynomys ludovicianus) pair greeting, South Dakota

Donald M. Jones / Black-tailed Prairie Dog (Cynomys ludovicianus) pair greeting, South Dakota

Karine Aigner / Portrait of an African wild dog (Lycaon Pictus) running on green grass, Zimbabwe.

Mark Raycroft / Border Collie (Canis familiaris), North America

Yva Momatiuk & John Eastcott / Black-tailed Prairie Dog (Cynomys ludovicianus) on alert, Theodore Roosevelt National Park, North Dakota

Mark Raycroft / German Shepherd (Canis familiaris) puppies, North America

Mark Raycroft / Golden Retriever (Canis familiaris) puppy, North America

Mark Raycroft / Cocker Spaniel (Canis familiaris) puppy playing, North America

Five Films / Fisherman using a net to land a large Pollack (Pollachius pollachius), with dog on boat, sustainably caught using pole and line, English Channel, near Salcombe, Devon, UK, November 2016.

Ingo Arndt / African wild dog portrait {Lycaon pictus} Namibia. Taken under controlled conditions.

Bence Mate / African wild dogs (Lycaon pictus) play fighting, Mkuze, South Africa

Neil Aldridge / African wild dog (Lycaon pictus) blurred motion photograph, Save Valley Conservancy, Zimbabwe.

Neil Aldridge / African wild dog (Lycaon pictus) pup peers around the base of a giant baobab tree on Save Valley Conservancy. Zimbabwe.

Lynn M Stone / Yellow Labrador retriever in fresh snow, Clinton, Connecticut, USA

Mark Raycroft / Black Labrador Retriever (Canis familiaris) puppy sniffing flower

Mark Raycroft / English Bulldog (Canis familiaris) female running

Mark Raycroft / Beagle (Canis familiaris) puppy smelling tulip

Wim van den Heever / African Wild dogs or Cape hunting dogs (Lycaon pictus) at close range taken from ground level, Zimanga Private Game Reserve, South Africa.

Mark Taylor / Black and white Jack-a-poo, Jack Russell cross Poodle, pup, 8 weeks old, jumping up.

Mark Taylor / Black-and-white Springer Spaniel puppy, age 6 weeks.

Mark Taylor / Yellow Labrador Retriever puppy, 8 weeks old, sitting with raised paw

Mark Taylor / Golden Cocker Spaniel dog, Henry, age 3 years, jumping up.

Mark Taylor / Cockapoo, Cocker spaniel cross Poodle puppy sitting.

Mark Taylor / Cockapoo, Cocker spaniel cross Poodle puppy on hind legs.

Mark Taylor / Tricolour merle Collie puppy, Indie, age 10 weeks.

Mark Taylor / Patterdale terrier dog puppy, Korka, age 4 months.

Mark Taylor / Australian Shepherd pup, age 16 weeks, in play-bow stance.

Mark Taylor / Yellow Labrador Retriever puppy, age 9 weeks, lying with head up.

Anup Shah / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) female grooming a domestic dog. Jodhpur, Rajasthan, India. March.

Fiona Rogers / Southern plains grey langur / Hanuman langur (Semnopithecus dussumieri) female grooming a domestic dog. Jodhpur, Rajasthan, India. March.

Rod Williams / Longhorn beetle (Rutpela / Strangalia maculata) feeding on Dog rose flower, Hutchinson's Bank, New Addington, London, England, June.

Wim van den Heever / African wilddog (Lycaon pictus) portrait, with another dog in the background. Okavango Delta, Botswana.

Doug Gimesy / Close up portrait of the eye of a rescued koala (Phascolarctos cinereus). Named 'CJ', he was the victim of a dog attack. He has eye injuries, scrapes and missing fur and is being treated with antibiot...

Nigel Cattlin / Houndstongue (Cynoglossum officinale) on shingle. Chesil Beach, Dorset, England, UK. May.

Nigel Cattlin / Dog's mercury (Mercurialis perennis). Berkshire, England, UK. April.

Nigel Cattlin / Crested dog's-tail grass (Cynosurus cristatus) amongst other grasses. Berkshire, England, UK. June.

Nigel Cattlin / Crested dog's-tail grass (Cynosurus cristatus) amongst other grasses. Berkshire, England, UK. June.

Juergen & Christine Sohns / African Wild Dog (Lycaon pictus) group surrounding Cape Warthog (Phacochoerus aethiopicus), Tswalu Game Reserve, South Africa

Juergen & Christine Sohns / African Wild Dog (Lycaon pictus) group attacking Cape Warthog (Phacochoerus aethiopicus), Tswalu Game Reserve, South Africa

Juergen & Christine Sohns / African Wild Dog (Lycaon pictus) running, Tswalu Game Reserve, South Africa

Charlie Summers / American badger (Taxidea taxus) crossing a major South Dakota highway with a Black-tailed Prairie Dog (Cynomys ludovicianus) firmly in its grasp. This is a female, a nursing mother, that was returning...

Charlie Summers / White-tailed prairie dog (Cynomys leucurus) youngsters playing on top of burrow, Arapaho National Wildlife Refuge of North Park, Colorado.

Charlie Summers / Black-tailed Prairie Dog (Cynomys ludovicianus) mother carrying one of her young to their burrow. Cherry Creek State Park, Colorado, USA, May.

Charlie Summers / White-tailed prairie dog (Cynomys leucurus) bounding through dew covered prairie grass, North Park, Colorado, USA.

Charlie Summers / Black-tailed prairie dogs (Cynomys ludovicianus) youngsters stay close together above their burrow, Cherry Creek State Park of Colorado, USA, May.

Charlie Summers / American badger (Taxidea taxus) female with Black-tailed Prairie Dog (Cynomys ludovicianus) prey she is taking to her cubs in their burrow. Custer State Park, South Dakota, USA. July.

Charlie Summers / American badger (Taxidea taxus) female with Black-tailed Prairie Dog (Cynomys ludovicianus) prey she is taking to her cubs in their burrow. Custer State Park, South Dakota, USA. July.

Shane Gross / Superb green cicada (Neotibicen superbus) adult emerging from exuvia. Harbour Island, Bahamas.

TJ Rich / Golden cocker spaniel puppy and Chocolate sprocker spaniel playing in armchair with toy. Wirral, England, UK.

TJ Rich / Black sprocker spaniel lying in Chesterfield armchair. Wirral, England, UK.

TJ Rich / Golden cocker spaniel puppy aged 12 weeks sleeping in blankets. Wirral, England, UK.

TJ Rich / Golden cocker spaniel puppy aged 12 weeks sleeping. England, UK.

TJ Rich / Black and white mongrel sitting amongst Bluebells, portrait. Gopher Wood SSSI, Marlborough Downs, Wiltshire, England, UK. May.

TJ Rich / Miniature Schnauzer sitting in Bluebell (Hyacinthoides non-scripta) wood. Bedwyn Common, Savernake Forest SSSI, Wiltshire, England, UK. May.

TJ Rich / Miniature Schnauzer sitting in Bluebell (Hyacinthoides non-scripta) wood. Bedwyn Common, Savernake Forest SSSI, Wiltshire, England, UK. May.

TJ Rich / Miniature Schnauzer sitting in Bluebell (Hyacinthoides non-scripta) wood. Bedwyn Common, Savernake Forest SSSI, Wiltshire, England, UK. May.

TJ Rich / Golden working cocker spaniel sitting between owner's legs. Wiltshire, England, UK.

TJ Rich / Golden working cocker spaniel panting, sitting amongst Bluebells in spring. Wiltshire, England, UK. April.

TJ Rich / Golden working cocker spaniel amongst bluebells, headshot. Wiltshire, England, UK. April.

TJ Rich / Golden working cocker spaniel sitting in Bluebell (Hyacinthoides non-scripta) wood. Wiltshire, England, UK. April.

TJ Rich / Young Springer Spaniel, lying down nose buried in leaf litter, on lead. Wiltshire, England, UK. March.

TJ Rich / Young springer spaniel sitting on doorstep. Wiltshire, England, UK.

TJ Rich / Springer spaniel on alert, lying down, portrait. Wiltshire, England, UK. March.

TJ Rich / Springer spaniel lying down, portrait. Wiltshire, England, UK.

TJ Rich / Hungarian vizsla sitting in field, portrait. Wiltshire, England, UK.

TJ Rich / Hungarian vizsla lying down in field. Wiltshire, England, UK.

TJ Rich / Hungarian vizsla lying down in field. Wiltshire, England, UK.

TJ Rich / Hungarian vizsla dog sitting, portrait in evening light. Wiltshire, England, UK.

TJ Rich / Hungarian vizsla dog sitting, portrait in evening light. Wiltshire, England, UK.

TJ Rich / Springer spaniel running along track, people walking in background. Savernake Forest SSSI, Wiltshire, England, UK.

TJ Rich / Springer spaniel portrait. Wiltshire, England, UK.

TJ Rich / Chocolate sprocker spaniel lying down, portrait. Wirral, England, UK.

TJ Rich / Golden cocker spaniel puppy aged 12 weeks, with collar and name tag, sitting in armchair, portrait. Wirral, England, UK.

TJ Rich / Golden cocker spaniel puppy aged 12 weeks, with collar and name tag, sitting in armchair, portrait. Wirral, England, UK.

David Pike / German short-haired pointer on tor. Dartmoor, Devon, England, UK. July 2019.

David Pike / German short-haired pointer following scent in woods. Stoke Woods, Exeter, Devon, England, UK. July 2019.

David Pike / German short-haired pointer on hillside. Dartmoor, National Park, Devon, England, UK. July 2019.

David Pike / German short-haired pointer amongst heather on hillside. Dartmoor, Devon, England, UK. July 2019.

Steven David Miller / Australian cattle dog running on Tallebudgera Beach, Gold Coast, Queensland, Australia.

Steven David Miller / Australian shepherd dog lying down on Tallebudgera Beach, Gold Coast, Queensland, Australia.

Steven David Miller / People and dogs on Tallebudgera Beach. Skyline of Surfers Paradise in background, Gold Coast, Queensland, Australia. 2016.

David Pike / German short-haired pointer lying down in grassland.

David Pike / German short-haired pointer running in grassland.