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  1. A Salmon-Crested Cockatoo At The Sedgwick County Zoo
  2. A Salmon-Crested Cockatoo At The Sedgwick County Zoo
  3. Millions Of Monarch Butterflies Cover Every Inch Of A Tree In Sierra Chincua, Mexico
  4. A great egret, Ardea alba
  5. A military macaw at the Denver Zoo, Denver, Colorado
  6. A Two-Month-Old Ocelot Cub At The Toucan Rescue Ranch In Costa Rica
  7. A federally threatened koala climbs on top of its mother, who has conjunctivitis
  8. A wood duck, at the Lincoln Children's Zoo
  9. Lower Klamath National Wildlife Refuge, Klamath Basin Refuge Complex, Californi A
  10. An endangered giant panda, Ailuropoda melanoleuca, at Zoo Atlanta
  11. Sierra Chincua, Mexico
  12. Between The Continental Divide And Lemhi Valley, Idaho
  13. Common wanderer at Angkor Center for Conservation of Biodiversity
  14. A male and female white winged duck, Asarcornis scutulata, at Sylvan Heights Bird Park
  15. Ghost ants at the Urban Entomology Lab at the University of Florida
  16. Endangered peninsula pronghorn antelopes at the Los Angeles Zoo
  17. A sulpher-crested cockatoo, at the Minnesota Zoo
  18. A nautilus, Nautilus pompilius, at the Monterey Bay Aquarium
  19. A herd of bison roam on a ranch
  20. Speckled Caimans (Caiman Crocodilus) Swimming In Rushing River Water, Pantanal, Brazil
  21. A vulnerable lesser prairie chicken, Tympanuchus pallidicinctus
  22. Barred owl, Strix varia, from Florida Wildlife Care
  23. Sioux Falls, South Dakota
  24. A western diamondback rattlesnake migrates radially from its den
  25. Small Indian Mongoose, Herpestes Javanicus, At The Assam State Zoo
  26. A Chilean flamingo chick
  27. An endangered Malayan tiger, Panthera tigris jacksoni
  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. A Rio Grande cutthroat trout at Seven Springs Fish Hatchery
  33. Salmon, Idaho
  34. Atacama Desert, Chile
  35. Basket Star, Gorgonocephalus Eucnemis, At The Alaska Sealife Center
  36. A critically-endangered Sumatran tiger at Zoo Atlanta
  37. A blossom headed parakeet, Psittacula roseata roseata, at Loro Parque Fundacion
  38. A federally threatened grizzly bear, Ursus arctos horribilis
  39. An albino Nelson's milksnake, Lampropeltis triangulum nelsoni
  40. Carolina wren, Thryothorus ludovicianus, from Florida Wildlife Care
  41. San Francisco Garter Snake, Thamnophis Sirtalis Tetrataenia, At The Exmoor Zoo
  42. A pair of Australian rainbow lorikeets, at the Indianapolis 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