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