Ross Hoddinott / Barn owl chicks in window {Tyto alba} Cornwall, UK

Alex Mustard / Light patterns on the seabed and fluffy cumulus clouds in the sky in a split level image. North Sound, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) chick aged six to eight weeks, portrait. Atka Bay, Antarctica. September.

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup on ice, Gulf of St. Lawrence, Canada

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup on ice, Gulf of St. Lawrence, Canada

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup sleeping on ice, Gulf of St. Lawrence, Canada

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup on ice, Gulf of St. Lawrence, Canada

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup on ice, Gulf of St. Lawrence, Canada

Klein & Hubert / Harp seal (Pagophilus groenlandicus) female with pup at sunset, Gulf of St. Lawrence, Canada

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup looking up to see behind it, Gulf of St. Lawrence, Canada

Markus Varesvuo / Willow grouse / Ptarmigan (Lagopus lagopus) fluffed up perched in snow, Inari, Finland, February.

Markus Varesvuo / Two Capercaillie (Tetrao urogallus) chicks, Vaala, Finland, June.

Edwin Giesbers / European bison (Bison bonasus) close up portrait showing horns, Zuid-Kennemerland National Park, the Netherlands. January. Reintroduced species.

Mark Taylor / Tabby kitten, Picasso, age 3 months, sleeping on a fluffy rug.

Gerrit Vyn / Snowy Owl (Bubo scandiacus) fluffing feathers, this image was taken during a massive increase in the range and population of snowy owls. Boundary Bay, Canada. March.

Yukihiro Fukuda / Japanese macaque (Macaca fuscata fuscata) mother with rare white furred baby, Jigokudani Valley, Nagano Prefecture, Japan. June.

Yukihiro Fukuda / Japanese macaque (Macaca fuscata fuscata) mother with rare white furred baby, Jigokudani Valley, Nagano Prefecture, Japan. June.

Joris van Alphen / Montagu's harrier (Circus pygargus) mother attempting to shelter her chicks from the rain, Flevoland, the Netherlands. July.

Nick Upton / Mute swan (Cygnus olor) female and a young cygnet foraging in sunset light, Kennet and Avon canal, Caen Hill, Wiltshire, UK, June.

George Sanker / Snowy egret (Egretta thula) with plumes erect, St. Augustine, Florida, USA, April.

Andy Rouse / Great crested grebe (Podiceps cristatus cristatus) with young chick on back, Cardiff, UK, April.

Fiona Rogers / Dusky leaf monkey (Trachypithecus obscurus) juvenile portrait . Khao Sam Roi Yot National Park, Thailand. March 2015.

Ole Jorgen Liodden / L'Hoest's monkey (Cercopithecus lhoesti) feeding on leaves, Rwanda.

Jussi Murtosaari / Goldeneye (Bucephala clangula) with chicks swimming behind, Helsinki, Uusimaa, Finland, May.

Andy Rouse / Mountain gorilla (Gorilla beringei) baby held by mother, Rwanda

Markus Varesvuo / Black grouse (lyrurus tetrix) female and chick at nest, Vaala, Finland, June.

Terry Whittaker / Portrait of Skewbald Icelandic horse in the snow, Snaefellsnes Peninsula, Iceland, March.

Terry Whittaker / Red squirrel (Sciurus vulgaris) feeding, Black Isle, Scotland, UK, February.

Nick Garbutt / Adult Giant Anteater (Myrmecophaga tridactyla) crossing the Transpantaneira Highway. Northern Pantanal, Moto Grosso State, Brazil, South America.

Ann & Steve Toon / Baby ground squirrel (Xerus inauris) using its tail for shade, Kgalagadi Transfrontier Park, South Africa. Non-ex.

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

Ingo Arndt / Harp seal (Phoca groenlandicus) pup sleeping on sea ice, Magdalen Islands, Gulf of St Lawrence, Quebec, Canada, March.

Roger Powell / Little owl (Athene noctua) perched on a fence post, ruffling its feathers, Castro Verde, Alentejo, Portugal, April.

Fiona Rogers / Lion-tailed macaque (Macaca silenus) female portrait. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India. Apr 2013.

Fiona Rogers / Lion-tailed macaque (Macaca silenus) male portrait. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India.

Diane McAllister / Japanese Macaque (Macaca fuscata) biting needles from tree branch while sitting in hot spring in Jigokudani, Japan, January

Konrad Wothe,Konrad Wothe / Greater Rhea (Rhea americana) male, Pantanal, Brazil, South America

Staffan Widstrand / Wild Wonders of China / Yunnan Snub-nosed monkey (Rhinopithecus bieti) feeding on lichen, Ta Chen NP, Yunnan province, China.

Ernie Janes,Ernie Janes / Newly hatched ducklings with eggs.

Andrew Parkinson / Gannet (Morus bassanus) chick with fluffy with mouth open. Shetland Islands, Scotland, UK, August.

Andrew Parkinson / Gannet (Morus bassanus) fluffy chick with its parent. Shetland Islands, Scotland, UK, August.

Andrew Parkinson / Gannet (Morus bassanus) chick backlit by evening light. Shetland Islands, Scotland, UK, August.

Mark Taylor / Fluffy black kitten, 12 weeks old, stretching.

Rod Williams / Northern / Chinese white-cheeked gibbon (Nomascus leucogenys) female head portrait, Laos, Vietnam, critically endangered species. Captive.

Andrew Parkinson / 2020VISION / Bearded tit / reedling / parrotbill (Panurus biarmicus) adult male landing on Bullrush (Typha latifolia) feeding on seeds, Rainham Marshes RSPB Reserve, London, UK, February

Andrew Parkinson / 2020VISION / Bearded tit / reedling / parrotbill (Panurus biarmicus) adult male perched on Bullrush (Typha latifolia) Rainham Marshes RSPB Reserve, London, UK, February

Fergus Gill / 2020VISION / Mountain hare (Lepus timidus) sub-adult leveret, Cairngorms National Park, Scotland, UK, July. 2020VISION Book Plate. Did you know? Mountain hares have been in the UK for over 100,000 years - much lon...

Erlend Haarberg / Arctic fox (Vulpes / Alopex lagopus) lying on snow, blue morph, Iceland, April