Bison bulls sparring, Custer State Park, South Dakota Baby porcupine sitting on a weathered elk antler, Bozeman, Montana Guanaco, Torres del Paine National Park, Patagonia, Chile Arrowhead reflection in Horseshoe Lake, Jasper National Park, Alberta, Canada Sneffels Range with fall colors, near Ouray, Colorado Two gemsbok face to face, Kgalagadi Transfrontier Park, South Africa Snow Leopard in the snow, in captivity, near Bozeman, Montana Blue columbine, San Juan National Forest, Colorado Vervet monkey, Kruger National Park, Africa Lion walking towards camera, Serengeti National Park, Tanzania, Africa North Clear Creek Falls, Rio Grande National Forest, Colorado, USA Aspen leaf turning red, Uncompahgre National Forest, Colorado, USA American pika among yellow wildflowers, San Juan National Forest, Colorado Common zebra or Burchell's zebra, Masai Mara National Reserve, Kenya, Africa Western meadowlark calling, Antelope Island State Park, Utah Tetons with first light in the valley with snow, Grand Teton National Park, Wyoming Baobab tree, Ruaha National Park, Tanzania Two lion cubs, Selous Game Reserve, Tanzania Cracked dunes with clouds, White Sands National Monument, New Mexico Sandhill crane in flight, Bosque Del Apache National Wildlife Refuge, New Mexico Porphyry Basin and Waterfall, San Juan National Forest, Colorado Captive whitetail deer fawn among oxeye daisies, Sandstone, Minnesota Two young wild burro playing, Custer State Park, South Dakota, USA Aspen leaf turning red and orange on a lichen-covered rock, Colorado, USA Biesa oryx, Samburu National Reserve, Kenya, Africa Male greater kudu, Kruger National Park, Africa Sneffels Range with fall colors, near Ouray, Colorado Fireweed, Glacier National Park, Montana Mount McKinley (Mount Denali), Denali Highway, Alaska Collared pika, Hatcher Pass, Alaska Balanced Rock at sunset, Arches National Park, Utah, USA Cloud at sunset reflected in an unnamed lake, Shoshone National Forest, Wyoming Red fox Rocky Mountain National Park, Colorado Bosche Range in winter, Jasper National Park, Rocky Mountains, Alberta, Canada Peter Lougheed Provincial Park, Kananaskis Country, Alberta, Canada Porcupine mother and baby, in captivity, Sandstone, Minnesota Two-track lane through fall aspens, near Telluride, Colorado African wild dog, Kruger National Park Devil's Tower, Devil's Tower National Monument, Wyoming Wild burro jenny biting its foal's ear, Custer State Park, South Dakota Colorful sandstone layers, Valley Of Fire State Park, Nevada Rocky Mountain iris, Weston Pass, Pike and San Isabel National Forest, Colorado African daisy A captive baby porcupine Animals of Montana, Bozeman, Montana Red fox adult and kit reflection, in captivity, Sandstone, Minnesota Two gemsbok fighting, Kgalagadi Transfrontier Park, South Africa Acacia tree at dawn, Masai Mara National Reserve, Kenya, East Africa, Africa American white pelican landing, Yellowstone National Park, Wyoming Page 1 Page 2 Page 3 Page 4 Page 6 Page 7 Page 8 Page 9 Page 10