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