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  1. A Spanish eagle owl, at the Palm Beach Zoo and Conservation Society
  2. A Salmon-Crested Cockatoo At The Sedgwick County Zoo
  3. Smooth fronted caiman at the Saint Augustine Alligator Farm Zoological Park
  4. A Salmon-Crested Cockatoo At The Sedgwick County Zoo
  5. Millions Of Monarch Butterflies Cover Every Inch Of A Tree In Sierra Chincua, Mexico
  6. A great egret, Ardea alba
  7. A military macaw at the Denver Zoo, Denver, Colorado
  8. A Two-Month-Old Ocelot Cub At The Toucan Rescue Ranch In Costa Rica
  9. A federally threatened koala climbs on top of its mother, who has conjunctivitis
  10. A wood duck, at the Lincoln Children's Zoo
  11. An endangered giant panda, Ailuropoda melanoleuca, at Zoo Atlanta
  12. Lower Klamath National Wildlife Refuge, Klamath Basin Refuge Complex, Californi A
  13. A male and female white winged duck, Asarcornis scutulata, at Sylvan Heights Bird Park
  14. Between The Continental Divide And Lemhi Valley, Idaho
  15. Common wanderer at Angkor Center for Conservation of Biodiversity
  16. Ghost ants at the Urban Entomology Lab at the University of Florida
  17. Endangered peninsula pronghorn antelopes at the Los Angeles Zoo
  18. A sulpher-crested cockatoo, at the Minnesota Zoo
  19. A herd of bison roam on a ranch
  20. An endangered Malayan tiger, Panthera tigris jacksoni
  21. A nautilus, Nautilus pompilius, at the Monterey Bay Aquarium
  22. Speckled Caimans (Caiman Crocodilus) Swimming In Rushing River Water, Pantanal, Brazil
  23. Barred owl, Strix varia, from Florida Wildlife Care
  24. A vulnerable lesser prairie chicken, Tympanuchus pallidicinctus
  25. Sioux Falls, South Dakota
  26. Small Indian Mongoose, Herpestes Javanicus, At The Assam State Zoo
  27. A western diamondback rattlesnake migrates radially from its den
  28. A federally threatened grizzly bear, Ursus arctos horribilis
  29. A military macaw at the Denver Zoo, Denver, Colorado
  30. An endangered Malayan tiger
  31. A Zerafshan pheasant, Phasianus colchicus zerafschanicus, at the Plzen Zoo
  32. Salmon, Idaho
  33. Basket Star, Gorgonocephalus Eucnemis, At The Alaska Sealife Center
  34. An aye aye, Daubentonia madagascariensis, at Duke Lemur Center
  35. Atacama Desert, Chile
  36. A Rio Grande cutthroat trout at Seven Springs Fish Hatchery
  37. A critically-endangered Sumatran tiger at Zoo Atlanta
  38. A blossom headed parakeet, Psittacula roseata roseata, at Loro Parque Fundacion
  39. A federally threatened grizzly bear, Ursus arctos horribilis
  40. An albino Nelson's milksnake, Lampropeltis triangulum nelsoni
  41. Carolina wren, Thryothorus ludovicianus, from Florida Wildlife Care
  42. San Francisco Garter Snake, Thamnophis Sirtalis Tetrataenia, At The Exmoor Zoo
  43. A federally threatened koala at a wildlife sanctuary
  44. An Endangered Male, White Bengal Tiger At The Alabama Gulf Coast Zoo
  45. Mei Lun And Mei Huan, Twin Giant Panda Cubs, Ailuropoda Melanoleuca, At Zoo Atlanta
  46. A federally endangered clouded leopard, Neofelis nebulosa
  47. A male Malay peacock pheasant, Polyplectron malacense, at Pheasant Heaven
  48. Close up of an American columbine, Aquilegia canadensis