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Photo Credits
- 1. (c) tom spinker, some rights reserved (CC BY-NC-ND)
- 2. (c) Diana-Terry Hibbitts, some rights reserved (CC BY-NC), uploaded by Diana-Terry Hibbitts
- 3. (c) Pompilid, some rights reserved (CC BY-SA)
- 4. (c) Donna Fernstrom, some rights reserved (CC BY), uploaded by Donna Fernstrom
- 5. (c) Andy Kraemer, some rights reserved (CC BY-NC)
- 6. (c) Clinton & Charles Robertson, some rights reserved (CC BY-SA)
- 7. (c) Zack, some rights reserved (CC BY-NC-SA)
- 8. (c) copepodo, some rights reserved (CC BY-NC-ND)
- 9. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 10. (c) J. N. Stuart, some rights reserved (CC BY-NC-ND)
- 11. (c) Matt Reinbold, some rights reserved (CC BY-SA)
- 12. (c) Patrick Dockens, some rights reserved (CC BY-NC-ND)
- 13. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 14. (c) Matthew High, some rights reserved (CC BY-NC)
- 15. (c) Amy Buthod, some rights reserved (CC BY-NC-SA)
- 16. (c) Hadley Paul Garland, some rights reserved (CC BY-NC-SA)
- 17. (c) David Bygott, some rights reserved (CC BY-NC)
- 18. (c) A. Jaszlics, some rights reserved (CC BY-NC)
- 19. (c) Ken-ichi Ueda, some rights reserved (CC BY)
- 20. (c) Josh Henderson, some rights reserved (CC BY-SA)
- 21. (c) Kerry Matz, some rights reserved (CC BY-NC-SA)
- 22. (c) Leah Heady, some rights reserved (CC BY-NC-ND)
- 23. (c) johnwilliams, some rights reserved (CC BY-NC), uploaded by johnwilliams
- 24. (c) Psyon, some rights reserved (CC BY-SA)
- 25. (c) L A, some rights reserved (CC BY-NC-ND)
- 26. (c) Francisco Farriols Sarabia, some rights reserved (CC BY), uploaded by Francisco Farriols Sarabia
- 27. (c) Adam W. Ferguson, some rights reserved (CC BY-NC), uploaded by Adam W. Ferguson
- 28. (c) J. N. Stuart, all rights reserved, uploaded by J. N. Stuart
- 29. (c) Karim Rezk, some rights reserved (CC BY-NC-ND)
- 30. (c) Eric Osmundson, some rights reserved (CC BY-NC-SA)
- 31. (c) Syd Phillips, some rights reserved (CC BY-NC)
- 32. (c) J. Martin, some rights reserved (CC BY-NC)
- 33. (c) Erin and Lance Willett, some rights reserved (CC BY-NC-ND)
- 34. (c) John B., some rights reserved (CC BY)
- 35. (c) Yathin, some rights reserved (CC BY-NC-ND)
- 36. (c) Juan Cruzado Cortés, some rights reserved (CC BY-SA), uploaded by Juan Cruzado Cortés
- 37. (c) Anita Gould, some rights reserved (CC BY-NC), uploaded by Anita Gould
- 38. (c) Juan Cruzado, some rights reserved (CC BY-SA), uploaded by Juan Cruzado
- 39. (c) Keaton Wilson, some rights reserved (CC BY)
- 40. (c) adamdv18, some rights reserved (CC BY-NC)
- 41. (c) Jennifer Krauel, some rights reserved (CC BY-NC-ND)
- 42. (c) lasionycteris, some rights reserved (CC BY-NC), uploaded by lasionycteris
- 43. (c) Josh More, some rights reserved (CC BY-NC-ND)
- 44. (c) Tatiana Gettelman, some rights reserved (CC BY-NC-SA)
- 45. (c) Bill Bouton, some rights reserved (CC BY-SA)
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- 47. (c) Saguaro National Park, some rights reserved (CC BY)
- 48. (c) reedgallagher, some rights reserved (CC BY-NC), uploaded by reedgallagher
- 49. (c) Georgia, some rights reserved (CC BY-NC), uploaded by Georgia
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- 51. (c) matt knoth, some rights reserved (CC BY-NC-ND)
- 52. (c) Dave Govoni, some rights reserved (CC BY-NC-SA), uploaded by Dave Govoni
- 53. (c) James Marvin Phelps, some rights reserved (CC BY-NC)
- 54. (c) Jessie Hirsch, some rights reserved (CC BY)
- 55. (c) Howard Cheng, some rights reserved (CC BY-SA)
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- 58. (c) Minette, some rights reserved (CC BY-NC)
- 59. (c) Danny Barron, some rights reserved (CC BY-NC-ND)
- 60. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
- 61. (c) Francisco Valdes Perezgasga, some rights reserved (CC BY-NC), uploaded by Francisco Valdes Perezgasga
- 62. (c) randomtruth, some rights reserved (CC BY-NC-SA)
- 63. (c) Cullen Hanks, some rights reserved (CC BY-NC), uploaded by Cullen Hanks
- 64. (c) Davide, some rights reserved (CC BY-SA)