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  1. Aspen trees (Populus tremuloides) in fall colors, Gunnison National Forest, Colorado
  2. Rufous Hummingbird (Selasphorus rufus) juvenile feeding on flowers, New Mexico
  3. Yellow Pond Lily (Nuphar luteum) close up of pads, North America
  4. Coconut Palm (Cocos nucifera) trees, Bikini Beach, Panglao Island, Philippines
  5. Claret Cup Cactus (Echinocereus triglochidiatus) flower, Arizona
  6. Wotans Throne from South Rim, Grand Canyon National Park, Arizona
  7. Alpine stream, Rollins Pass near Winter Park, Colorado
  8. Western Sandpipers pair standing back to back with beaks tucked under wings
  9. Organ Pipe Cactus, Organ Pipe Cactus National Monument, Sonoran Desert, Arizona
  10. Garrapata Creek flowing into the Pacific Ocean, Big Sur, California
  11. La Plata River, La Plata Canyon, San Juan National Forest, Colorado
  12. Rainbow over Brown Mountain, Colorado
  13. Morro Rock at Morro Bay, California
  14. Rain storm on the Serengeti Plains, Kenya
  15. Upper Geyser Basin in winter, Yellowstone National Park, Wyoming
  16. Pelada Beach at sunset, Costa Rica
  17. Cayuga Falls, Ricketts Glen State Park, Pennsylvania
  18. Joshua Tree (Yucca brevifolia), Joshua Tree National Park, California
  19. Ruby Range reflected in the Slate River, Colorado
  20. Fireweed (Epilobium angustifolium) against flowing stream, North America
  21. Lower Yellowstone Falls and Grand Canyon of Yellowstone National Park, Wyoming
  22. Mount Wilbur at Fishercap Lake, Glacier National Park, Montana
  23. White-necked Jacobin (Florisuga mellivora) hummingbird, male foraging, Costa Rica
  24. Path Through Grasses And Pines Near Marsh, Saint George Island, Florida
  25. South Rim of Grand Canyon with a dusting of snow, Grand Canyon National Park, Arizona
  26. Yosemite Falls in spring, Yosemite National Park, California
  27. Cabbage Palm (Sabal sp) in wetland, Fakahatchee State Preserve, Florida
  28. North Clear Creek Waterfall cascading down cliff, Colorado
  29. Gliding Leaf Frog (Agalychnis spurrelli) on Heliconia (Heliconia sp), Costa Rica
  30. John Day River near Dayville, Oregon
  31. Towers of the Virgin with cloud shadows, Zion National Park, Utah
  32. Sandstone cliffs and canyon seen from Toroweap Overlook, Grand Canyon National Park
  33. Reflections in Wasco Lake, Twenty Lakes Basin, Sierra Nevada, California
  34. Teddy Bear Cholla cacti, Joshua Tree National Park, California
  35. Sun Parakeet (Aratinga solstitialis) pair feeding on leaves, native to South America
  36. Grand Canyon, Grand Canyon National Park, Arizona
  37. Chutes Provincial Park, Ontario, Canada
  38. Atlantic Sailfish Hunting Round Sardinella, Isla Mujeres, Mexico
  39. Rufous-tailed Hummingbird (Amazilia tzacatl) hovering near flower, Ecuador
  40. Gray Wolf pup, Montana
  41. Totem Pole and Yei Bi Chei with sand dunes and shrubs, Monument Valley, Arizona
  42. Panorama view of Windy Mountain, Wyoming
  43. Fog over tundra, Tombstone Range, Tombstone Territorial Park, Yukon, Canada
  44. Gothic Mountain overlooking meadow near Crested Butte, Colorado
  45. Wotans Throne from Cape Royal, North Rim, Grand Canyon National Park, Arizona
  46. Hoodoos In Winter, Bryce Canyon National Park
  47. Masai Giraffe (Giraffa camelopardalis tippelskirchi) mother and young, Kenya
  48. Seastacks on El Matador State Beach, Malibu, California