Christophe Courteau / Greater flamingoes (Phoenicopterus ruber) and Lesser flamingoes (Phoeniconaias minor), Walvis Bay, Namibia.
Christophe Courteau / Male Common kestrel (Falco tinnunculus) feeding juvenile, France, May.
Christophe Courteau / Female Mountain gorilla (Gorilla beringei beringei) playing with baby, Volcanoes National Park, Rwanda.
Christophe Courteau / Ostriches (Struthio camelus) running in the distance in a mirage, Sossusvlei, Namib-Nauckluft National Park, Namib Desert, Namibia.
Christophe Courteau / Plains zebra (Equus burchelli) drinking in a dust storm, Boteti River, Kalahari Desert, Botswana.
Christophe Courteau / White backed vulture (Gyps africanus) feeding, Linyanti Game Reserve, Botswana.
James Dunbar / Close up of a Cryptic mantis (Sibylla pretiosia) catching and eating a fruit fly, UK. Captive.
Philippe Clement / Panning shot of silhouetted pine trees and early morning mist rising from a lake, Loch Garten, Strathspey, Scotland, UK, September.
Philippe Clement / European brown bear (Ursus arctos arctos) cubs suckling from mother in the snow in winter, Bavarian Forest National Park, Germany, January. Captive.
Philippe Clement / Lynx (Lynx lynx) feeding on a Roe deer (Capreolus capreolus) in snow in winter, with juvenile passing by, Bavarian Forest National Park, Germany, January. Captive.
Philippe Clement / Juvenile European brown bear cub (Ursus arctos arctos) walking in deep snow in winter, Bavarian Forest National Park, Germany, January. Captive.
Sandesh Kadur / Female Bengal tiger (Panthera tigris tigris) stalking and play fighting with a juvenile male, Ranthambore National Park, Rajasthan, India. 2016.
Sandesh Kadur / Female Dussumier's malabar langur (Semnopithecus dussumieri) feeding with baby, picks it up and walks away, Ranthambore National Park, Rajasthan, India. 2016.
Jabruson Motion / Silverback Mountain gorilla (Gorilla beringei beringei) and family resting in vegetation, with a juvenile peering into the camera lens Bukima, Virunga National Park, Democratic Republic of Congo, 1996...
Sandesh Kadur / Two male Bengal tiger (Panthera tigris tigris) cubs playing in a waterhole, one pulling its mother's tail, Ranthambore National Park, Rajasthan, India. 2016.
Terry Whittaker / Red squirrel (Sciurus vulgaris) leaping between Scots pine tree (Pinus sylvestris)s, lands on camera, Black Isle, Ross and Cromarty, Scotland, February.
Jabruson Motion / Close-up of a male Mountain gorilla (Gorilla beringei beringei) and juvenile resting, captivated by reflection in camera lens, knocks juvenile over, Bukima, Virunga National Park, Democratic Republic...