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  1. Playa Espadilla, Manuel Antonio National Park, Costa Rica
  2. Sunset over Miette Range and Talbot Lake, Jasper National Park, Alberta, Canada
  3. Aspen trees in autumn, Santa Fe National Forest near Santa Fe, New Mexico
  4. View from the Green River Overlook, Canyonlands National Park, Utah
  5. Cove and seastacks near Garrapata State, Beach Big Sur, California
  6. Swift River, White Mountains National Forest, New Hampshire
  7. Atlantic coast near Thunder Hole, Acadia National Park, Maine
  8. East Beckwith Mountain flanked by Aspen forests under cumulus clouds, Colorado
  9. Sand dunes with Sangre de Cristo Mountains in the background, Colorado
  10. American Alligator, North America
  11. North Clear Creek Falls, Rio Grande National Forest, Colorado
  12. Aspen (Populus tremuloides) forest in spring, Gunnison National Forest, Colorado
  13. Sand dunes, Monahans Sandhills State Park, Texas
  14. Cathedral Rock reflected in Oak Creek, Red Rock State Park near Sedona, Arizona
  15. Aspen and Spruce trees dusted with snow, Rocky Mountain National Park, Colorado
  16. Sea arch and full moon over El Matador State Beach, Malibu, California
  17. Green River Overlook, Canyonlands National Park, Utah
  18. Trumpeter Swan Flapping, Magness Lake, Arkansas
  19. Full moon over boulders at El Pescador State Beach, Malibu, California
  20. Moon over Carson Range with Carson River, Nevada
  21. Steam rising from Mammoth Hot Springs, Yellowstone National Park, Wyoming
  22. Sun illuminating the Alabama Hills California
  23. Chutes Provincial Park, Ontario, Canada
  24. Coastline, Big Sur, Garrapata State Beach, California
  25. Autumn leaf on boulder Little River Great Smoky Mountains National Park Tennessee
  26. Incoming waves at Bandon Beach, Oregon
  27. La Sal Mountains and Globemallows, Salt Valley, Arches National Park, Utah
  28. Sandy beach, Oahu, Hawaii
  29. El Capitan and Balanced Rock, Guadalupe Mountains National Park, Texas
  30. Orangutan (Pongo pygmaeus) young eating fruit, Sabah, Borneo, Malaysia
  31. Sunrise at Hurricane Ridge, Olympic National Park, Washington
  32. Panoramic view of Mt Kidd as seen from Wedge Pond, Alberta, Canada
  33. Mountain Lion or Cougar walking through a field of red Paintbrush flowers
  34. Brown Pelican (Pelecanus occidentalis) adult portrait, Texas
  35. California Poppy and Desert Bluebell flowers, Antelope Valley, California
  36. Pointed Phlox and Indian Paintbrushes in bloom, Hill Country, Texas
  37. North Falls, Silver Falls State Park near Salem, Oregon
  38. Hot Creek at sunset, eastern Sierra Nevada, California
  39. Sunset on mountains in Valley of Fire State Park, Mojave Desert, Nevada
  40. Siberian Tiger (Panthera tigris altaica) running, native to Russia
  41. Purple-throated Woodstar hummingbird hovering near Bougainveillea flower
  42. Grizzly Bear (Ursus arctos horribilis) calling, North America
  43. Colorado River from Toroweap Overlook, Grand Canyon National Park, Arizona
  44. Waves crashing on rocky shore, Wawaloli Beach, Big Island, Hawaii
  45. Full moon over Mono Lake with tufa towers and the eastern Sierra Nevada Mountains
  46. Trumpeter Swan Trio Flying, Magness Lake, Arkansas
  47. Long-tailed Sylph feeding on flower nectar, Jurong Bird Park, Singapore
  48. Timber Wolf (Canis lupus) portrait, North America