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  1. Mountain lion or cougar (Felis concolor) in snow, near Bozeman, Montana
  2. Sunrise over Alpine wildflowers, San Juan National Forest, Colorado
  3. Bison in snow, Yellowstone National Park, Wyoming
  4. Bison Bull Covered With Frost In The Winter, Yellowstone National Park, Wyoming
  5. Masai Giraffe mother and young, Serengeti National Park, Tanzania, Africa
  6. Two bison (Bison bison) bulls facing off, Yellowstone National Park, Wyoming
  7. Bison in a snowstorm, Yellowstone National Park, Wyoming
  8. Bison cow and calf, Yellowstone National Park, Wyoming
  9. Bobcat in the snow, near Bozeman, Montana
  10. Canadian Lynx in snow in captivity, near Bozeman, Montana
  11. Mears Peak with snow and yellow aspens in the fall, Colorado, USA
  12. Gray wolf drinking in the fog, reflected in the water, Sandstone, Minnesota
  13. Mears Peak with snow and yellow aspens in the fall, Colorado, USA
  14. Red and orange fall colors in the Wasatch Mountains, Uinta National Forest, Utah
  15. Canadian Lynx in snow in captivity, near Bozeman, Montana
  16. Sneffels Range with fall colors, near Ouray, Colorado
  17. Whitetail deer fawn among oxeye daisy, in captivity, Sandstone, Minnesota
  18. Red Fox in the snow, Prospect Park, Wheatridge, Colorado
  19. Bull elk bugling in the snow, Jasper National Park, Alberta, Canada
  20. Bobcat in snow, near Bozeman, Montana
  21. Sneffels Range with aspens in fall colors, near Ouray, Colorado
  22. Captive Barn Owl In Barn Window, Boulder County, Colorado
  23. Young black bear a year and a half old, Bozeman, Montana
  24. Guadalupe Peak and El Capitan at sunset, Guadalupe Mountains National Park, Texas
  25. Aspen grove in early fall, White River National Forest, Colorado
  26. Guadalupe Peak and El Capitan at sunset, Guadalupe Mountains National Park, Texas
  27. Lane through fall aspens, Ophir Pass, Uncompahgre National Forest, Colorado
  28. Emerald Pools Trail, Zion National Park, Utah
  29. Orange clouds at dawn above Longs Peak, Rocky Mountain National Park, Colorado
  30. Grinnell Point and Swiftcurrent Creek, Glacier National Park, Montana
  31. Baobab at sunrise, Ruaha National Park, Tanzania
  32. Cascade in The Narrows of the Virgin River, Zion National Park, Utah
  33. Sunset over The Sawtooth Mountains, Sawtooth National Recreation Area, Idaho
  34. Black bear cub among oxeye daisy, in captivity, Sandstone, Minnesota
  35. Wilson Peak at dawn, Uncompahgre National Forest, Colorado
  36. Aspen trunks among yellow leaves, Colorado, USA
  37. Bison reflected in a pond, Yellowstone National Park, Wyoming
  38. Male greater kudu, Mountain Zebra National Park, South Africa
  39. Mountain lion or cougar in snow, near Bozeman, Montana
  40. Mount Sneffels with snow in the fall, Uncompahgre National Forest, Colorado, USA
  41. Male Gambel's Quail scratching for food, Henderson, Nevada
  42. Cape buffalo or African buffalo Masai Mara National Reserve, Kenya
  43. Blue columbine, Weston Pass, Pike and San Isabel National Forest, Colorado
  44. Two dung beetles rolling a dung ball, Addo Elephant National Park, South Africa
  45. Bison, Yellowstone National Park, Wyoming
  46. Aspen grove with early fall colors, Maroon Lake, Colorado
  47. Two bull elk sparring during the rut, Jasper National Park, Alberta, Canada
  48. African Elephant Baby And Mother, Addo Elephant National Park, South Africa