Caribbean, Aruba, San Nicolas District, Pellican on a boat in Rodgers Beach.

Herd of rodeo horses running through meadow in winter, Kalispell, Montana.

Tundra wolves exhibiting dominance behavior in winter.

Snow leopard running through snow, Montana.

Giraffe, Kalahari Desert, Botswana

Greater Kudu, Kalahari Desert, Botswana

Impala. Kalahari Desert, Botswana

Black Backed Jackal, Kalahari Desert, Botswana

Female American Kestrel.

Burchell's Zebra drinking and reflection in pool of water, Serengeti National Park, Tanzania, Africa.

Lion cub, Serengeti National Park, Tanzania, Africa.

Hippopotamus, Ngorongoro Crater, Tanzania, Africa.

Juvenile lion cubs with adult female lion, Ngorongoro Crater, Tanzania, Africa.

Cheetah, Serengeti National Park, Tanzania.

Madagascar, Andasibe, Vakona Lodge, Lemur Island. Diademed sifaka (Propithecus diadema) in a tree.

Africa, Kenya, Amboseli National Park. Walking elephants and acacia tree.

African Wild Dog silhouette, Khwai River, Okavango Delta, Botswana

Elephant, Moremi Game Reserve, Okavango Delta, Botswana

Leopard, Okavango Delta, Botswana

Elephant, Okavango Delta, Botswana

Zebra at sunrise, Okavango Delta, Botswana

Leopard silhouette, Khwai River, Okavango Delta, Botswana

Lion cub lying on its mother, Okavango Delta, Botswana

Elephant bull, Baines Baobabs, Nxai Pan National Park, Botswana

Elephant bull, Baines Baobabs, Nxai Pan National Park, Botswana

Elephant silhouettes, Chobe River, Chobe National Park, Botswana

Elephant silhouettes, Chobe River, Chobe National Park, Botswana

Elephant silhouette, Chobe River, Chobe National Park, Botswana

Lion, Chobe River, Chobe National Park, Botswana

Young elephant shrouded in dust, Chobe River, Chobe National Park, Botswana

Chacma Baboon, Chobe River, Chobe National Park, Botswana

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, three Kazakhs on horseback with trained eagles, Bajan-Olgii province, Mongolia, Asia

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

Mongolian eagle hunters, father and son with trained eagles in yurt, Bajan-Olgii province, Mongolia, Asia

Blue iguana (Cyclura lewisi), Queen Elizabeth II Botanic Park, North Side, Grand Cayman, Cayman Islands

A lonely tree in the vast grassland of the Maasai Mara game reserve, Kenya

a pair of Lion (panthera leo) in the maasai mara national reserve, kenya

African buffalo or Cape buffalo (Syncerus caffer) in Lake Nakuru National Park

Horses grazing on a pasture on foggy morning, Vysoka Lipa, Jetrichovice, Okres Decin, Ustecky kraj Province, Bohemian Switzerland National Park, North-Western Czech Republic, Czech Republic

King Penguin feeding a chick in brown plumage, Falkland Islands.

Arctic, north of Svalbard. A polar bear rests on the edge of a slab of pack ice.

Africa, Madagascar, Anosy Region, Berenty Reserve. A Verreaux's sifaka 'dances' across open areas.