Uganda, Murchison Falls National Park. A Hippo basks in the Victoria Nile.

South Africa, Northeastern, Sabi Sand Private Game Reserve, Leopard, Panthera pardus, male leopard walking in the wild

Kenya, Tsavo East National Park, Taita-Taveta County. A fine female elephant with crossed tusks. Its colour is a result of it dusting itself with red soil.

A bedouin man leads camels across sand dunes, Wahiba sands, Oman

Kenya, Amboseli, Kajiado County. Two bull elephants spar for dominance.

Zambia, Kafue National Park, Busanga Plains. A young bull Sable antelope running fast.

Zambia, Kafue National Park, Busanga Plains. A herd of elephants moving through dry, dusty terrain in the late afternoon

Zambia, Kafue National Park, Busanga Plains. A herd of elephants led by a matriarch on the move in the late afternoon

Friesian galloping, summer, Austria, Europe

USA, Katmai National Park, Brook Falls, Alaska. A Brown bear with a sockeye salmon in its mouth as another leaps over Brook Falls to escape to its spawning grounds.

USA, Katmai National Park, Brook Falls, Alaska. A Brown bear pounces on a sockeye salmon as it prepares to leap over Brook Falls on its way to spawning grounds.

India, Tamil Nadu state, Anaimalai Mountain Range (Nilgiri hills), Lion-tailed macaque (Macaca silenus), or the Wanderoo, The lion-tailed macaque ranks among the rarest and most threatened primates, a...

China, Harbin, Siberian Tiger Park, Siberian Tiger (Panthera tgris altaica)

China, Harbin, Siberian Tiger Park, Siberian Tiger (Panthera tgris altaica)

China, Sichuan province, Chengdu, Research Base of Giant Panda Breeding or Chengdu Panda Base, Giant Panda (Ailuropoda melanoleuca), captive

Africa, Namibia, Etosha National park. Elephants at the waterhole of Okaukuejo.

Hanoverian horse, Sorrel, brown, reddish fur, galloping in the snow, Tyrol, Austria, Europe

Two young calves (Bos primigenius taurus) standing inquisitively on an alpine pasture, Upper Bavaria, Bavaria, Germany, Europe

Arabian horse, mare galloping in deep snow, Tyrol, Austria, Europe

USA, Wyoming, Shell, Horses in the Cold (PR)

USA, Minnesota, Minnesota Wildlife Connection. Captive black bear cubs on log.

USA, Minnesota, Minnesota Wildlife Connection. Captive black bear cubs climbing tree.

Humpback Whales (Megatpera novaengliae), Chatham Strait, Inside Passage, Alaska, USA

Tanzania; Serengeti National Park; Barafu Kopjes. A male lion walks across the short grass plains of the Serengeti; heading for shade.

Bottlenose Dolphins (Tursiops truncatus), Caribbean Sea, Roatan, Bay Islands, Honduras

Red Deer (Cervus elaphus) adult buck and hinds silhouette walking in grassland during sunset, The Netherlands, Gelderland, Hoge Veluwe NP

European Hare (Lepus europaeus) portrait resting on meadow, The Netherlands, Gelderland, Arkemheen

Impala (Aepyceros melampus) with Red-billed Oxpecker (Buphagus erythrorhynchus), South Africa, Mpumalanga, Kruger National Park

Kenya, Maasai Mara National Game Reserve. A zebra foal dozes; oblivious to danger among the safety of the family herd.

Kenya, Maasai Mara National Game Reserve. A male lion walks purposefully through long red oat grass towards the sound of roaring from other members of his pride.

Namibia; Otjiwarango, Cheetah Conservation Fund. Cheetah running after lure at CCF to exercise and keep fit and healthy.

Kenya, Maasai Mara National Game Reserve. Masai giraffe walking across the savanna as a rain storm gathers in the late afternoon illuminated by a rainbow. Male following a female.

Kenya, Narok County, Maasai Mara National Reserve, Musiara Marsh. A cheetah cub grabs a young impala that its mother has caught and released to it to practice its hunting skills.

Africa, Kenya, Masai Mara National Reserve. Group of zebras on ridge

Kenya, Masai Mara, Narok County. A baby elephant.

Kenya, Masai Mara, Narok County. Zebras drinking from a pool.

Kenya, Masai Mara, Narok County. A female leopard cub with her cub.

Kenya, Masai Mara, Narok County. A female leopard cub with her cub.

Wild elephant portrait, Botswana, Africa

Kilchurn Castle is a ruined 15th and 17th century structure on a rocky peninsula at the northeastern end of Loch Awe, in Argyll and Bute, Scotland

Young African Bush Elephant (Loxodonta africana) in the savannah landscape, Serengeti, Tanzania, Africa

Herd of Giraffes (Giraffa camelopardalis) with calves, Serengeti, Tanzania, Africa

West Indian manatee or sea cow (Trichechus manatus), Three Sisters Springs, Manatee Reserve, Crystal River, Florida, USA, North America

Sperm whale (Physeter macrocephalus) close to the water surface, Azores, Portugal, Europe

Young gray seal (Halichoerus grypus) on the beach, Dune island, Helgoland, Schleswig-Holstein, Germany, Europe

European Otter (Lutra lutra) on a frozen pond in winter, Brandenburg, Brandenburg, Germany, Europe

Red Fox (Vulpes vulpes) standing on an alpine meadow, looking sideways, Tyrolean Unterland, Tyrol, Austria, Europe

Elk (Alces alces), bull, portrait, captive, Troms, Norway, Europe

Botswana, Vumburua Plains, Okavango Delta. A leopard cub in a tree.

Botswana, Chief's Island, Okavango Delta. A portrait of a leopard standing on a log.

Botswana, Vumburua Plains, Okavango Delta. A leopard cub in a tree.

Botswana, Hunda Island, Okavango Delta. A Red Lechwe taking a leap over shallow water.

Botswana, Hunda Island, Okavango Delta. A chacma baboon wading through shallow water with a baby riding piggy-back.