Dietmar Nill / Two European hares (Lepus europaeus) boxing in a snow covered field, Germany, March.

Bruno D'Amicis / Fennec fox (Vulpes zerda) pups playing outside of den, Grand Erg Oriental, Kebili Governorate. Tunisia.

Ross Hoddinott / Brown pelican (Pelecanus occidentalis) diving for fish with the Athala II boat in the background, Espumilla beach, Galapagos, Ecuador. April.

Mark Raycroft / Weimaraner (Canis familiaris) running through field

Ernie Janes,Ernie Janes / Lambs in meadow in spring, UK, April

Ben Cranke,Ben Cranke / Japanese Macaque (Macaca fuscatata) juvenile, reaching out to touch the camera, Jigokudani, Nagano Prefecture, Honshu, Japan

Ernie Janes / Domestic sheep, lambs playing in field, Goosehill Farm, Buckinghamshire, UK, April 2005

Ernie Janes / Domestic sheep, lambs playing in a field, Norfolk, UK, March

Petra Wegner / Kromfohrlander playing with ball / toy, in a field.

Niall Benvie / Young girl and boy playing in a wildflower meadow, Scotland, UK, July 2009. Model released

Niall Benvie / Young girl and boy playing in a wildflower meadow, Scotland, UK, July 2009

Niall Benvie / Young girl arms in air, waving / playing in a wildflower meadow, Scotland, UK, July 2009. Model released

Thomas Mangelsen / Polar Bear (Ursus maritimus) pair wrestling, Churchill, Manitoba, Canada

Jaymi Heimbuch / Domestic Dog (Canis familiaris) named Jack, a scent detection dog with Conservation Canines, playing with field technician Colette Yee, northeast Washington

Jen Guyton / Meerkat (Suricata suricatta) two pups playing among a field of yellow devil's thorn flowers (Suricata suricatta) in the Kalahari Desert of South Africa.

Luke Massey / Smooth coated otter (Lutrogale perspicillate) playing with football net, Singapore. November.

Luke Massey / Smooth coated otter (Lutrogale perspicillate), Singapore. November.

Luke Massey / Smooth coated otters (Lutrogale perspicillate) playing in sports grounds, Singapore. November.

Brent Stephenson / Young Jack Russell terrier runing across a field, Redbrook, Monmouthshire, Wales, UK, August.

Brent Stephenson / Young Jack Russell terrier running across a field carrying a blue ball in his mouth, Redbrook, Monmouthshire, Wales, UK, August.

Pascal Pittorino / Shih tzu dogs (Canis familiaris) male and female, aged 4 years, playing and running in field, Var, Provence, France, August

Kristel Richard / Two newborn warmblood Wurttemberger or Wurttemberg colts running in field. Marbach National Stud, Swabian Alps, near Reutlingen, in Baden-Wurttemberg, Germany, May.

Kristel Richard / A newborn warmblood Wurttemberger or Wurttemberg colt running in field. Marbach National Stud, Swabian Alps, near Reutlingen, in Baden-Wurttemberg, Germany, May.

David Woodfall / Wraysbury cricket pitch under water in February 2014 floods, Wraysbury, England, UK, 16th February 2014.

David Woodfall / Cricket pitch and benches flooded during February 2014 floods. Surrey, England, UK, 16th February 2014.

Will Burrard-Lucas / Mass of Straw-coloured fruit bat (Eidolon helvum) in flight, Kasanka National Park, Zambia.

Will Watson / Floodwater covering a cricket ground, St. John's, Worcester, England, UK, February 2014.

Eric Baccega / Five day old purebred Andalusian foal (Equus caballus) playing in a field, Alsace, France, May.

Eric Baccega / Five day old purebred Andalusian foal (Equus caballus) playing in a field, Alsace, France, May.

Eric Baccega / Five day old purebred Andalusian foal (Equus caballus) playing in a field, Alsace, France, May.

Eric Baccega / Five day old purebred Andalusian foal (Equus caballus) playing in a field, Alsace, France, May.

Cyril Ruoso / Domestic Horse (Equus caballus) pair interacting, central Iceland

Florian Möllers / Malinois x Herder puppy 'Zora', female, running in field carriyng a stick, September, Germany

Andrew Parkinson / Red fox (Vulpes vulpes) two cubs playfighting on the fringes of a field, Derbyshire, UK, June.

Ernie Janes / Domestic sheep, two lambs interacting in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, lambs playing in field, Goosehill Farm, Buckinghamshire, UK, April 2005

Ernie Janes / Domestic sheep, lambs playing in field, Goosehill Farm, Buckinghamshire, UK, April 2005

Ernie Janes / Domestic sheep, lambs playing in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, ewe and two lambs in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, lambs playing in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, Texel lambs playing in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, lambs playing in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, two Texel lambs playing in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, group of five Texel lambs together in a field, Norfolk, UK, March

Ernie Janes / Domestic sheep, Texel lambs playing in hay feeder in field, Norfolk, UK, March

Ernie Janes / Domestic sheep, lambs playing in field, Goosehill Farm, Buckinghamshire, UK, April 2005

Ernie Janes / Domestic sheep, lambs playing in field, Goosehill Farm, Buckinghamshire, UK, April 2005

Petra Wegner / Kromfohrlander playing with / retrieving ball / toy, in a field.

Petra Wegner / Two Kromfohrlanders running / racing in field towards camera.

Petra Wegner / Two Kromfohrlanders running /racing in field towards camera.

LYNN M. STONE / Domestic goat {Capra hircus} two Saanen breed goat kids playing with leaf scrap in field, East Troy, Wisconsin, USA

Andrew Parkinson / Red fox {Vulpes vulpes} pair of cubs playing in a field of wildflowers, Derbyshire, UK

Pete Cairns / Young girl playing in summer meadow, Cairngorms National Park, Scotland, UK. Model released.

Pete Cairns / Young girl playing in summer meadow, Cairngorms National Park, Scotland, UK. Model released.

Pete Cairns / Young girl playing in summer meadow, Cairngorms National Park, Scotland, UK. Model released.

Mark Raycroft / Weimaraner (Canis familiaris) running through field

Duncan Usher / Appenzeller Sennenhund (Canis familiaris) puppy playing with terrier in field, Germany

Duncan Usher / Appenzeller Sennenhund (Canis familiaris) puppy playing with terrier in field, Germany

Mike Read / New Forest ponies grazing by the cricket green near Bolton's Bench, Lyndhurst, New Forest National Park, Hampshire, England, UK. November, 2022.

Mike Read / Village green with cricket pitch and club house, Bolton's Bench, Lyndhurst, New Forest National Park, Hampshire, England, UK. November, 2022.

Robin Chittenden / Two boys running through field and blowing bubbles with toy, Norfolk, England, UK. July, 2014. Model released.

Robin Chittenden / Boys chasing each other in field with river behind, Norfolk, England, UK. April, 2015. Model released.

Gary Braasch / Three children playing football in dried up rice fields after severe drought, Fu Lou Village, Guangdong, China. January, 2005.

Will Watson / Rising floodwater from the River Wye surrounding Common lime (Tilia x europaea) trees and covering King George V Playing fields, Herefordshire, England, UK. 15th January 2023.

Will Watson / People crossing Victoria Bridge with high water levels on the River Wye, surrounded by floodwater across the King George V playing fields, Herefordshire, England, UK. 14th January 2023.

Andrew Parkinson / Two Red fox (Vulpes vulpes) cubs playfighting on the fringes of a field, Derbyshire, UK. May.

Nick Upton / Snowshoe cat (Felis catus) playing with dead Long-tailed field mouse (Apodemus sylvaticus) prey on a garden lawn, Wiltshire, UK. April.

Nick Upton / Snowshoe cat (Felis catus) playing with dead Long-tailed field mouse (Apodemus sylvaticus) prey on a garden lawn, Wiltshire, UK. April.

Jussi Murtosaari / White-tailed deer (Odocoileus virginianus), two fawns playing in field. Kirkkonummi, Finland. September. Introduced species.

Jussi Murtosaari / White-tailed deer (Odocoileus virginianus), two fawns playing in field. Kirkkonummi, Finland. September. Introduced species.

Jussi Murtosaari / White-tailed deer (Odocoileus virginianus), two fawns playing in field. Kirkkonummi, Finland. September. Introduced species.

Cyril Ruoso / Red fox (Vulpes vulpes), two cubs play fighting at edge of field, near den. Yonne France. May.

Alex Mustard / Planted colony of Staghorn coral (Acropora cervicornis) growing on a frame on a coral reef with bluehead (blue-headed wrasse: Thalassoma bifasciatum) and diver (Sam Lungari). Dive site: Playing Field....

David Tipling / Young children, a boy and girl, playing in hay meadow, Norfolk, England, UK. June. Model Released.