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  1. Gray wolf at the Rose Creek area of Yellowstone National Park, Wyoming
  2. Scaled quail, Callipepla squamata, at the Albuquerque Biological Park
  3. Composite of different species of Photo Ark species
  4. A fisherman in Bighorn Creek, part of the Kootenay River system
  5. D.J. And Dirgahayu, 11-Month-Old Orangutans, Java, Indonesia
  6. An African spurred tortoise, Geochelone sulcata, at the Denver zoo
  7. A Critically Endangered Javan Leopard At Taman Safari
  8. A rare Eastern indigo snake, Drymarchon corais couperi
  9. A Northern white-faced owl, at the Cincinnati Zoo
  10. A grizzly bear at rest on the edge of the Larson Bay dump
  11. Black piranha, Serrasalmus rhombeus, at Shark Reef Aquarium
  12. A great egret, Ardea alba
  13. Giant Katydid, Stilpnochlora Couloniana, At The Budapest Zoo
  14. A green cheeked parakeet, Pyrrhura molinae restricta, from a private collection
  15. American flamingos, Phoenicopterus ruber, at the Lincoln Children's Zoo
  16. Edward's fig parrot, Psittaculirostris edwardsii, at Loro Parque Fundacion
  17. A Baby Striped Skunk From Dunbar, Nebraska
  18. Millions Of Monarch Butterflies Cover Every Inch Of A Tree In Sierra Chincua, Mexico
  19. A Male Desert Bighorn Sheep At The Arizona Sonora Desert Museum
  20. Gambel's quail, Callipepla gambelii, at the Albuquerque BioPark
  21. A rare Northern spotted owl, Strix occidentalis caurina
  22. Ely, Minnesota
  23. A green parakeet, Psittacara holochlorus strenuus, from a private collection
  24. Kenai National Wildlife Refuge, Alaska
  25. South Diamond Gila trout, Oncorhynchus gilae gilae, at Mora National Fish Hatchery
  26. A Bull Elk With His Antlers In Velvet At The Oklahoma City Zoo
  27. Blue Crayfish, Procambarus Alleni, At L'aquarium Tropical Du Palais De La Porte Doree
  28. Missouri
  29. Gray Wolf In A Snowfall With Snowflakes On Its Fur, Ely, Minnesota
  30. A veiled chameleon
  31. Barred owl, Strix varia, from Florida Wildlife Care
  32. A Rio Grande cutthroat trout at Seven Springs Fish Hatchery
  33. Cope's gray tree frog, hiding in a peony bush near Cross Lake, Minnesota
  34. Portrait Of A Gray Wolf In A Snowfall With Snowflakes On Its Fur, Ely, Minnesota
  35. Black-faced spider monkey, Madidi National Park, Bolivia
  36. Four buff orpington hens in tall grass
  37. Ringnecked pheasant, Phasianus colchicus, in the Nebraska sandhills
  38. A female bison, at the Oklahoma City Zoo
  39. A nautilus, Nautilus pompilius, at the Monterey Bay Aquarium
  40. A Federally Endangered Florida Panther, Tampa's Lowry Park Zoo
  41. Cliff chipmunk, Tamias dorsalis, at Southwest Wildlife Conservation Center
  42. Atlantic Mudskipper, Periophthalmus Barbarus, At The Aquarium Of The Pacific
  43. Close view of a gorilla face
  44. A critically-endangered Sumatran tiger cub, Panthera tigris sumatrae, at Atlanta Zoo
  45. African wild dogs, at the Omaha Zoo
  46. Animal Kingdom, Orlando, Florida
  47. Mason, Texas
  48. Wild American Bison (Bison Bison) Roam On A Game Preserve Near Canton, Kansas