Puffin (Fratercula arctica) flapping wings, Isle of May, Firth of Forth, Scotland, UK

Highland cattle on grassland, Digg, Isle of Skye, Scottish Highlands, Scotland, UK

A white horse walks through a slot canyon, Cappadocia, Nevsehir Province, Central Anatolia, Turkey

African Lion (Panthera leo) male lying on a rock and looking straight in the camera, Nkomazi, Mpumalanga, South Africa

Giant Kingfisher (Megaceryle maxima), portrait of an adult male, Kruger National Park, Limpopo, South Africa

Bald Eagle (Haliaeetus leucocephalus) juvenile in the snow spreading wings, seen from the back, United States

Eurasian Eagle-owl (Bubo bubo) adult male perched on a branch in the forest in the snow, The Netherlands

Male Common Blue (Polyommatus icarus) warming up on forget-me-not, Noord-Holland, The Netherlands

Northern Goshawk (Accipiter gentilis) adult taking off from water, Drontermeer, Elburg, Flevoland, The Netherlands

Eurasian Lynx (Lynx lynx) walking in the snow, Montana, United States

Moose (Alces alces) bull drinking from tundra pond, Denali National Park and Preserve, Alaska, United States

Common Tern (Sterna hirundo) adult flying, IJssel, Kampen, Overijssel, The Netherlands

Leopard (Panthera pardus) at night lying in the tree at night, South Luangwa National Park, Zambia

Gelada Baboon (Theropithecus gelada) male showing his teeth, Simien Mountains, Amhara, Ethiopia

Swallow-tailed Hummingbird (Eupetomena macroura) hovering, Fortaleza, Ceará, Brazil

Portrait of an Atlantic Puffin in the island of Mykines. Faroe Islands

A gaucho of the Estancia Bonanza with his horse and the Mount Fitz Roy in background, El Chalten, Argentina. (MR)

A gaucho of Estancia Bonanza on horseback with the Fitz Roy Mountain in the background, El Chalten, Argentina. (MR)

France, Pays de la Loire, Sarthe, Rouesse Vasse, grove, Red squirrel (Sciurus vulgaris)

France, Bourgogne-Franche-Comte, Doubs, Brognard, Natural area of Allan, European kingfisher (Alcedo atthis), young on the lookout on a branch

Ghost glass frog (Centrolenella ilex),mid elevation cloud forest, Arenal, Costa Rica

Granular glass-frog (Cochranella granulosa), lowland rainforest, Boca Tapada, Costa Rica

Emerald Glass Frog (Centrolene prosoblepon) Costa Rica

Emerald Glass Frog (Centrolene prosoblepon), mid elevation cloud forest, Bajos del Toro, Costa Rica

Red-eyed tree frog (Agalychnis callidryas) with natural bokeh, lowland rainforest, Boca Tapada, Costa Rica

Snowy owl (Bubo scandiacus), Ontario, Canada

Impala (Aepyceros melampus), Khwai, Botswana, Africa

Leopard (Panthera pardus), Savuti, Chobe National Park, Botswana, Africa

Southern elephant seal (Mirounga leonina) roaring, Sea Lion Island, Falkland Islands

Gelada Baboon (Theropithecus gelada) opening its mouth, Simien Mountains National Park, Ethiopia

Red Deer (Cervus elaphus), adult stag bellowing in moorland, Nationaal Park De Hoge Velwuwe, Gelderland, Netherlands

Eurasian Eagle Owl (Bubo Bubo) perched on the ground in a forest, Gelderland, the Netherlands

Snowy Owl (Bubo scandiacus) portrait, looking at camera

Common Redpoll (Carduelis flammea) resting on branch during snowfall, Kuusamo, Lappland, Finland

Mongolian Eagle hunter, Bayan-Olgii province, Mongolia, Asia

Brown Bear (Ursus arctos) with rainbow above forest, Suomussalmi, Karelia, Finland, Europe

France, Somme, Baie de Somme, Le Crotoy, The marsh of Crotoy welcomes each year a colony of Black-headed Gull (Chroicocephalus ridibundus - Black-headed Gull) which come to nest and reproduce on islan...

Kenya, Masai Mara Game Reserve, lion (Panthera leo), male