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  1. Bison in snow, Yellowstone National Park, Wyoming
  2. Mountain lion or cougar (Felis concolor) in snow, near Bozeman, Montana
  3. Two bison (Bison bison) bulls facing off, Yellowstone National Park, Wyoming
  4. Masai Giraffe mother and young, Serengeti National Park, Tanzania, Africa
  5. Canadian Lynx in snow in captivity, near Bozeman, Montana
  6. Aspen grove in early fall, White River National Forest, Colorado
  7. Bison in a snowstorm, Yellowstone National Park, Wyoming
  8. Sneffels Range with aspens in fall colors, near Ouray, Colorado
  9. Red Fox in the snow, Prospect Park, Wheatridge, Colorado
  10. Bobcat in snow, near Bozeman, Montana
  11. Mears Peak with snow and yellow aspens in the fall, Colorado, USA
  12. Young black bear a year and a half old, Bozeman, Montana
  13. Lane through fall aspens, Ophir Pass, Uncompahgre National Forest, Colorado
  14. Sunrise over Alpine wildflowers, San Juan National Forest, Colorado
  15. Aspen trunks among yellow leaves, Colorado, USA
  16. Two bull elk sparring during the rut, Jasper National Park, Alberta, Canada
  17. Fall colors of aspens with evergreens, near Ouray, Colorado
  18. Sneffels Range with fall colors, near Ouray, Colorado
  19. Wilson Peak at dawn in the fall, Uncompahgre National Forest, Colorado, USA
  20. Whitetail deer fawn among oxeye daisy, in captivity, Sandstone, Minnesota
  21. Captive baby river otter Sandstone, Minnesota
  22. Aspen trunks among yellow leaves, Colorado, USA
  23. Cascade in The Narrows of the Virgin River, Zion National Park, Utah
  24. Gray wolf drinking in the fog, reflected in the water, Sandstone, Minnesota
  25. St. Mary Lake and Wild Goose Island on a cloudy morning, Glacier National Park, Montana
  26. Red and orange fall colors in the Wasatch Mountains, Uinta National Forest, Utah
  27. Baby African elephant, Serengeti National Park, Tanzania, East Africa
  28. Bison cow and calf, Yellowstone National Park, Wyoming
  29. Mears Peak with snow and yellow aspens in the fall, Colorado, USA
  30. Bull elk bugling in the snow, Jasper National Park, Alberta, Canada
  31. Aspen trunks in the fall, White River National Forest, Colorado
  32. Crystal Mill with aspens in fall colors, Crystal, Colorado
  33. Acacia tree silhouetted at dawn, Masai Mara Game Reserve, Kenya, East Africa, Africa
  34. Hippopotamus, Serengeti National Park, Tanzania, East Africa
  35. Orange clouds at dawn above Longs Peak, Rocky Mountain National Park, Colorado
  36. Bison bulls sparring, Custer State Park, South Dakota, USA
  37. Yellow aspen leaves in the fall, Uncompahgre National Forest, Colorado, USA
  38. Mount Sneffels with snow in the fall, Uncompahgre National Forest, Colorado, USA
  39. Black bear sow nursing a spring cub, Yellowstone National Park, Wyoming
  40. Bald eagle perched with spread wings, Boulder County, Colorado
  41. Aspen leaf turning colors, Uncompahgre National Forest, Colorado, USA
  42. Gray wolf in captivity, Sandstone, Minnesota, USA
  43. Guadalupe Peak and El Capitan at sunset, Guadalupe Mountains National Park, Texas
  44. Aspen grove with early fall colors, Maroon Lake, Colorado
  45. Bison bull, Yellowstone National Park, Wyoming
  46. American White Pelican, Sonny Bono Salton Sea National Wildlife Refuge, California
  47. Captive baby raccoon, Animals of Montana, Bozeman, Montana
  48. Whitetail deer fawn with reflection, in captivity, Sandstone, Minnesota