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  1. A tree frog on a leaf, Madidi National Park, Bolivia
  2. Two of eight pups with parent of captive Mexican gray wolves, Wichita, Kansas
  3. Snow geese flying by the sun at twilight, Squaw Creek National Wildlife Refuge, Missouri
  4. An artichoke on a studio background
  5. A close-up of berries during winter, Lincoln, Nebraska
  6. Close up of a prairie dog, Montana
  7. Wallaces flying frog (Rhacophorus nigropalmatus)
  8. This capuchin monkey sits perched in a tree, Madidi National Park, Bolivia
  9. A white oak leaf
  10. Three of eight pups of captive Mexican gray wolves, Wichita, Kansas
  11. A close view of a black-tailed prairie dog, U.L. Bend National Wildlife Refuge, Montana
  12. Close up of an ostrich's head at Fossil Rim Wildlife Center, Glen Rose, Texas
  13. A strawberry on a studio background
  14. A hiker silhouetted against snow-covered Mount McKinley, Denali National Park, Alaska
  15. The eye and face of a veiled chameleon, Chamaeleo calyptratus
  16. A group of caimans wait for fish, Pantanal, Brazil
  17. An elephant ear plant close up
  18. Capitol dome with moon, Hartford, Connecticut
  19. Gray wolf at the Rose Creek area of Yellowstone National Park, Wyoming
  20. Boston night aerial with time exposure car lights on Central Artery
  21. A Steller sea lion exchanges a kiss with her pup, Lowrie Island, Forrester Island National Wildlife Refuge, Alaska
  22. A captive gray wolf licks his nose, Rapid City, South Dakota
  23. Gray wolf at the International Wolf Center, Ely, Minnesota
  24. The eye of a veiled chameleon, Chamaeleo calyptratus
  25. Sandhill cranes silhouetted against a twilight sky, Nebraska
  26. Wildflowers on coastal prairie, Eagle Lake, Texas
  27. Black-faced spider monkey, Madidi National Park, Bolivia