Gilded Flicker (Colaptes chrysoides) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

Chapman's Zebra (Plains Zebra) (Equus burchelli antiquorum) drinking, Imfolozi Game Reserve, South Africa, Africa

Crowned Plover (Crowned Lapwing) (Vanellus coronatus), Addo Elephant National Park, South Africa, Africa

White rhinoceros (Ceratotherium simum), Kruger National Park, South Africa, Africa

Sunrise, Serengeti National Park, Tanzania, East Africa, Africa

Pronghorn (Antilocapra americana) cow and calf, Yellowstone National Park, Wyoming, United States of America, North America

Marabou Stork (Leptoptilos crumeniferus), Kruger National Park, South Africa, Africa

Double-Crested Cormorant (Phalacrocorax auritus) in flight with nesting material, Denver City Park, Denver, Colorado, United States of America, North America

Bison (Bison bison) in snow, Yellowstone National Park, Wyoming, United States of America, North America

Leopard (Panthera pardus) in heavy brush, Kruger National Park, South Africa, Africa

Young African elephant (Loxodonta africana), Addo Elephant National Park, South Africa, Africa

Columbian ground squirrel (Citellus columbianus), Glacier National Park, Montana, United States of America, North America

Great egret (Ardea alba), Salton Sea, California, United States of America, North America

Joshua tree at dawn, Joshua Tree National Park, California, United States of America, North America

Hoary marmot (Marmota caligata), Glacier National Park, Montana, United States of America, North America

Boulders at sunset, Joshua Tree National Park, California, United States of America, North America

Balanced Rock at dusk, Arches National Park, Utah, United States of America, North America

Red rock formation at sunset with clouds, The Needles District, Canyonlands National Park, Utah, United States of America, North America

Hoary marmot (Marmota caligata), Glacier National Park, Montana, United States of America, North America

Cameron Falls, Waterton Lakes National Park, Alberta, Canada, North America

Greater roadrunner (Geococcyx californianus), Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Leopard (Panthera pardus), Kruger National Park, South Africa, Africa

Teton Range at dawn in the winter, Grand Teton National Park, Wyoming, United States of America, North America

Chukar (Alectoris chukar), Antelope Island State Park, Utah, United States of America, North America

Teton Range at first light in the winter, Grand Teton National Park, Wyoming, United States of America, North America

Foggy meadow under clouds, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Early light on rugged peaks, Banff National Park, UNESCO World Heritage Site, Alberta, Rocky Mountains, Canada, North America

Sunset, Karumba, Queensland, Australia, Pacific

Delicate Arch, Arches National Park, Utah, United States of America, North America

Oxbow Bend at dawn, Grand Teton National Park, Wyoming, United States of America, North America

Sandstone formation under clouds, Gold Butte, Nevada, United States of America, North America

Cascades through moss-covered boulders, Olympic National Park, Washington State, United States of America, North America

Leopard (Panthera pardus), Masai Mara National Reserve, Kenya, East Africa, Africa

Snow-covered pine trees, Bryce Canyon National Park, Utah, United States of America, North America

Looking south from Cape Royal on the North Rim at dawn, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Gros Ventre River with snow, ice, and fog, Grand Teton National Park, Wyoming, United States of America, North America

Rock formations, Needles District, Canyonlands National Park, Utah, United States of America, North America

Looking out through Tower Arch, Arches National Park, Utah, United States of America, North America

Gentoo penguin (Pygoscelis papua) adult with two chicks begging for food, Ronge Island, Antarctic Peninsula, Antarctica, Polar Regions

Rolling hills with trees and clouds, Custer State Park, South Dakota, United States of America, North America

Black bear (Ursus americanus) spring cub in captivity, Sandstone, Minnesota, United States of America, North America

Young olive baboon (Papio cynocephalus anubis), Serengeti National Park, Tanzania, East Africa, Africa

Juvenile American robin (Turdus migratorius), Gunnison County, Colorado, United States of America, North America

Sunset behind Mirror Lake, Gunnison National Forest, Colorado, United States of America, North America

Bull elk (Cervus canadensis), Rocky Mountain National Park, Colorado, United States of America, North America

Main Terrace Hot Spring in winter, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Tufa formations at dawn, Mono Lake, California, United States of America, North America

Hoodoo and erosion channel, Bisti Wilderness, New Mexico, United States of America, North America

Erosion patterns in a small drainage, Bisti Wilderness, New Mexico, United States of America, North America

Lion (Panthera leo) cub, Masai Mara National Reserve, Kenya, East Africa, Africa

Two young African Elephant (Loxodonta africana), Masai Mara National Reserve, Kenya, East Africa, Africa

Short-Billed Dowitcher (Limnodromus griseus) reflected at sunset, Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America

Leopard (Panthera pardus) in a tree, Masai Mara National Reserve, Kenya, East Africa, Africa

Mount McKinley (Mount Denali) reflected in a lake along the Denali Highway, Alaska, United States of America, North America

Black bear (Ursus americanus), Banff National Park, Alberta, Canada, North America

Leopard (Panthera pardus), Masai Mara National Reserve, Kenya, East Africa, Africa

Sandhill Crane (Grus canadensis) just about to land, Bernardo Wildlife Area, Ladd S. Gordon Wildlife Complex, New Mexico, United States of America, North America

Lioness (Panthera leo) covered with flies, Serengeti National Park, Tanzania, East Africa, Africa

Black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America

Ruff (Philomachus pugnax), Kruger National Park, South Africa, Africa

Coyote (Canis latrans) in snow, Yellowstone National Park, Wyoming, United States of America, North America

Sable Antelope (Hippotragus niger), Kruger National Park, South Africa, Africa

Juniper at sunset at Keys View, Joshua Tree National Park, California, United States of America, North America

St. Mary Lake and Wild Goose Island on a cloudy morning, Glacier National Park, Montana, United States of America, North America

Dawn at Lake Sherburne, Glacier National Park, Montana, United States of America, North America

Bisti Wing, Bisti Wilderness, New Mexico, United States of America, North America

Goblin (hoodoo), Goblin Valley State Park, Utah, United States of America, North America

Bare tree with dark clouds, Kruger National Park, South Africa, Africa

Common duiker (grey duiker) (bush duiker) (Sylvicapra grimmia), female, Kruger National Park, South Africa, Africa

Bison (Bison bison) bull covered with snow in the winter, Yellowstone National Park, Wyoming, United States of America, North America

Western Meadowlark (Sturnella neglecta), Antelope Island State Park, Utah, United States of America, North America

Coyote (Canis latrans), Rocky Mountain National Park, Colorado, United States of America, North America

Rock Needle, Needles District, Canyonlands National Park, Utah, United States of America, North America

Male Gunther's dik dik (Rinchotragus guntheri), Samburu National Reserve, Kenya, East Africa, Africa

Male Kori bustard (Ardeotis kori) displaying, Ngorongoro Crater, Ngorongoro Conservation Area, Tanzania, East Africa, Africa

Common ostrich (Struthio camelus), Addo Elephant National Park, South Africa, Africa

Secretarybird (Sagittarius serpentarius), Masai Mara National Reserve, Kenya, East Africa, Africa

Egyptian vulture (Neophron percnopterus), Masai Mara National Reserve, Kenya, East Africa, Africa

Two male impala (Aepyceros melampus) sparring, Serengeti National Park, Tanzania, East Africa, Africa

Close-up of face of an African elephant (Loxodonta africana), Serengeti National Park, Tanzania, East Africa, Africa

Golden-mantled squirrel (Citellus lateralis), Rocky Mountain National Park, Colorado, United States of America, North America

Red-billed hornbill (Tockus erythrorhynchus), Samburu National Reserve, Kenya, East Africa, Africa

Ruff (Philomachus pugnax), Kruger National Park, South Africa, Africa

Sipapu Natural Bridge, Natural Bridges National Monument, Utah, United States of America, North America

Lioness (Panthera leo), Masai Mara National Reserve, Kenya, East Africa, Africa

Two Lion (Panthera leo) cubs, Masai Mara National Reserve, Kenya, East Africa, Africa

Leopard (Panthera pardus), Masai Mara National Reserve, Kenya, East Africa, Africa

Leopard (Panthera pardus), Masai Mara National Reserve, Kenya, East Africa, Africa

Baby African Elephant (Loxodonta africana) standing under its mother, Addo Elephant National Park, South Africa, Africa

Curve-billed Thrasher (Toxostoma curvirostre), Caballo Lake State Park, New Mexico, United States of America, North America

Two Richardson Ground Squirrel (Citellus richardsoni), Grand Teton National Park, Wyoming, United States of America, North America

Female Impala (Aepyceros melampus), Kruger National Park, South Africa, Africa

American coot (Fulica americana), San Jacinto Wildlife Area, California, United States of America, North America

Male pyrrhuloxia (Cardinalis sinuatus), The Pond, Amado, Arizona, United States of America, North America

Killdeer (Charadrius vociferus), Salton Sea, California, United States of America, North America

Black bear (Ursus americanus), Yellowstone National Park, Wyoming, United States of America, North America

Burchell's coucal (Centropus burchellii), Kruger National Park, South Africa, Africa

Colorado chipmunk (Eutamias quadrivittatus), Rocky Mountain National Park, Colorado, United States of America, North America

Sand dunes at dusk, Great Sand Dunes National Park, Colorado, United States of America, North America

Sand dunes with grasses and ridges in foreground, Great Sand Dunes National Park, Colorado, United States of America, North America