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  1. Gray wolf at the International Wolf Center, Ely, Minnesota
  2. A mountain goat descends a sheer rock wall to lick exposed salt
  3. A tawny frogmouth owl, Podargus strigoides, at the Fort Worth Zoo
  4. A common raven, Corvus corax principalis, at the Los Angeles Zoo
  5. A bison, on a ranch near Valentine, Nebraska
  6. A non-irrigated field of corn near Bennet, Nebraska
  7. Portrait of a young pig in a snow dusted animal pen
  8. Monarch butterflies, Danaus plexippus, in the Sierra Chincua mountains
  9. A snowy egret, at the Lincoln Children's Zoo
  10. Composite of 110 different species of ducks and geese
  11. A butte often painted by Georgia OKeeffe on her Ghost Ranch
  12. A red fox stands alert in short grasses
  13. Wildflowers on coastal prairie, Eagle Lake, Texas
  14. Monarch butterflies cover every inch of a tree in Sierra Chincua
  15. Boston night aerial with time exposure car lights on Central Artery
  16. An oil rig silhouetted at sunset
  17. Brown cockroach, Periplaneta brunnea, at Western Kentucky University
  18. An oil rig pumps oil from the Montana ground
  19. A black bear perches on a rock watching for fish in Clayoquot Sound
  20. A silhouette of a herd of bison
  21. A Young Female Snowy Owl At The Raptor Recovery Center, In Elmwood, Nebraska
  22. Platte River, Nebraska
  23. A monarch butterfly at the Lincoln Children's Zoo
  24. Parakeets or budgies
  25. White tailed hawk, Geranoaetus albicaudatus, at the National Aviary of Colombia
  26. Wild American Bison (Bison Bison) Roam On A Ranch In South Dakota
  27. Sandhill cranes silhouetted against a twilight sky, Nebraska
  28. A clouded leopard, Neofelis nebulosa
  29. A red barn on a homestead farm in Nebraska
  30. Leadore, Idaho
  31. Three wild burros standing in sagebrush
  32. Close up of an African eagle ow, Animal Kingdom, Orlando, Florida
  33. A great egret, Ardea alba
  34. A silhouette of a herd of bison
  35. Misty view of a gray wolf sitting near a tree, Yellowstone National Park, Wyoming
  36. Lightning fills the night sky near Walton
  37. Gulf Coast Of Texas
  38. A group of American flamingos, Phoenicopterus ruber, at Lincoln Children's Zoo
  39. Millions Of Monarch Butterflies Travel To Winter Roosts In Mexico, Sierra Chincua
  40. South Dakota
  41. A silhouette of a herd of bison
  42. A Negros Scops Owl At Negros Forest Park
  43. Endangered African grey parrots, Psittacus erithacus erithacus, at Parrots in Paradise
  44. The sun sets on the Nebraska Sandhills
  45. A portrait of a bison on a ranch
  46. An African Pygmy Hedgehog, Atelerix Albiventris, At Sedgwick County Zoo
  47. A studio portrait of a yellow lab
  48. A green parakeet, Psittacara holochlorus strenuus, from a private collection