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  1. Colorado River, Marble Canyon, Grand Canyon National Park, Arizona.
  2. An Adelie penguin, Pygoscelis adeliae, jumping on an iceberg.
  3. Scenic Deer Creek Falls in Grand Canyon National Park.
  4. Scenic Travertine Falls on the Little Colorado River.
  5. A group of Icelandic horses, Equus scandinavicus.
  6. Grizzly bear prickly pear cactus, Opuntia erinacea.
  7. Painted Desert, Petrified Forest National Park, Arizona.
  8. Brown Bear, Ursus Arctos, Fishing For Sockeye Salmon At Brooks Falls
  9. The yellow leaves of fall frame a rock formation.
  10. Cascades along Deer Creek in slot canyon, Grand Canyon National Park.
  11. Brown bear, Ursus arctos, fishing for sockeye salmon at Brooks Falls.
  12. Fresh snow at the South Rim, Grand Canyon National Park, Arizona
  13. The leaves of a forest change colors in autumn.
  14. Eroded sandstone and a tumbleweed branch in a slot canyon.
  15. Quaking Aspen and Ponderosa Pine trees display fall colors.
  16. A flock of brown pelicans flying low over water at sunset.
  17. Black and white photo of a humpback whale's tail.
  18. Kayakers at the Land's End Arch rock formations at sunrise.
  19. A lone polar bear walks along ice on the Arctic Ocean.
  20. View of the Colorado River flowing through Nankoweap Canyon.
  21. Adelie penguins walk on a beach where a cruise ship is anchored.
  22. A humpback whale breaches in the Pacific Ocean.
  23. Polar bear, Ursus maritimus, on pack ice at water's edge.
  24. Blue water, Colorado River, Grand Canyon National Park, Arizona.
  25. Fall color and rock formations casting reflections in calm water.
  26. Orca, Robson Bight Ecological Reserve, Vancouver Island, British Columbia, Canada
  27. Hikers and rainbow Kaibab Trail, Grand Canyon National Park.
  28. A peaceful landscape stretches to the horizon.
  29. Waterfall from a narrow crevass in a sandstone cliff.
  30. A pair of chinstrap penguins in a courtship cuddle.
  31. Sculpted icebergs under clouds near the shore of Couverviller Island.
  32. Canoes lined up on a dock at Wonder Lake in front of Mt. McKinley.
  33. Kite surfers at sunset.
  34. Polar Bear Walking On Melting Pack Ice With Blue Water Pools, Svalbard, Norway
  35. A sculpted blue iceberg off of Cuverville Island.
  36. Brown Bear Fishing For Sockeye Salmon At Brooks Falls, Katmai National Park, Alaska
  37. Two Crabeater Seals Lying On An Ice Floe In Grandidier Channel, Antarctica
  38. A Bornean Orangutan Family In A Tree
  39. Hiker walking in the turquoise waters of Havasu Canyon.
  40. Brown Bear Mom With Cubs At Silver Salmon Creek, Lake Clark National Park
  41. United States Antarctic Survey Research Buildings, Palmer Station
  42. King Penguins Near Water Under A Cloudy Sky In South Georgia, Antarctica
  43. Three vervet monkeys in a leafy tree.
  44. Iceberg With Arch Frames An Expedition Ship, Yalour Islands, Antarctica
  45. Bald Eagle, Haliaeetus Leucocephalus, Perched On Rock Pinnacle In Kachemak Bay