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Photo Credits
- 1. (c) Jeromi Hefner, some rights reserved (CC BY)
- 2. (c) Roberto R. Calderón, some rights reserved (CC BY-NC), uploaded by Roberto R. Calderón
- 3. (c) Matthew High, some rights reserved (CC BY-NC)
- 4. (c) Jake Scott, all rights reserved, uploaded by Jake Scott
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- 6. (c) Bobby McCabe, some rights reserved (CC BY), uploaded by Bobby McCabe
- 7. (c) Per Verdonk, some rights reserved (CC BY-NC)
- 8. (c) Andrew Hoffman, some rights reserved (CC BY-NC-ND)
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- 10. (c) Hal Trachtenberg, some rights reserved (CC BY-NC)
- 11. (c) Phil's 1stPix, some rights reserved (CC BY-NC-SA)
- 12. (c) Cullen Hanks, some rights reserved (CC BY-NC), uploaded by Cullen Hanks
- 13. (c) Milo Pyne, some rights reserved (CC BY-NC), uploaded by Milo Pyne
- 14. (c) Are W, some rights reserved (CC BY-NC-SA)
- 15. (c) Joshua Tree National Park, some rights reserved (CC BY)
- 16. (c) Mike, some rights reserved (CC BY-SA)
- 17. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 18. (c) Mikael Behrens, some rights reserved (CC BY-NC), uploaded by Mikael Behrens
- 19. (c) Chuck Sexton, some rights reserved (CC BY-NC), uploaded by Chuck Sexton
- 20. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 21. (c) amy_buthod, some rights reserved (CC BY-NC-SA)
- 22. (c) Steven J. Baskauf, some rights reserved (CC BY)
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- 26. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 27. (c) Susan Adams, some rights reserved (CC BY-NC-SA)
- 28. (c) conabio_bancodeimagenes, some rights reserved (CC BY-NC-ND), uploaded by conabio_bancodeimagenes
- 29. (c) Bastiaan, some rights reserved (CC BY-NC-ND)
- 30. (c) Duarte Frade, some rights reserved (CC BY), uploaded by Duarte Frade
- 31. (c) Jon Sullivan, some rights reserved (CC BY)
- 32. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 33. (c) Joshua Ekrut, some rights reserved (CC BY-NC-SA), uploaded by Joshua Ekrut
- 34. (c) Danny Barron, some rights reserved (CC BY-NC-ND)
- 35. (c) Judith Ellen Lopez, some rights reserved (CC BY-NC)
- 36. (c) Kenneth Bader, some rights reserved (CC BY-NC), uploaded by Kenneth Bader
- 37. (c) J.R.M., some rights reserved (CC BY-NC-SA)
- 38. (c) troney, some rights reserved (CC BY-NC), uploaded by troney
- 39. (c) Judith Ellen Lopez, some rights reserved (CC BY-NC-SA)
- 40. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
- 41. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
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- 43. (c) CameliaTWU (off for a while), some rights reserved (CC BY-NC-ND)
- 44. (c) Bob O'Kennon, some rights reserved (CC BY-NC), uploaded by Bob O'Kennon
- 45. (c) Lori Anne, some rights reserved (CC BY-NC), uploaded by Lori Anne
- 46. (c) Erin Faulkner, some rights reserved (CC BY-NC), uploaded by Erin Faulkner
- 47. (c) Anna Livia Singer, some rights reserved (CC BY-NC-ND), uploaded by Anna Livia Singer
- 48. (c) Tania Homayoun, some rights reserved (CC BY-NC-ND), uploaded by Tania Homayoun
- 49. (c) Shawn Econo, some rights reserved (CC BY-NC-SA)
- 50. (c) cjosefson, some rights reserved (CC BY-NC), uploaded by cjosefson
- 51. (c) Andy Blair, some rights reserved (CC BY-NC), uploaded by Andy Blair
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- 53. (c) chantalchao, some rights reserved (CC BY-NC), uploaded by chantalchao
- 54. (c) Allen Coombes, some rights reserved (CC BY-NC), uploaded by Allen Coombes
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- 58. (c) Linda Jo Conn, some rights reserved (CC BY-NC), uploaded by Linda Jo Conn
- 59. (c) Todd J, some rights reserved (CC BY-NC-ND)
- 60. (c) Ada Czerwonogora, some rights reserved (CC BY-NC-SA)
- 61. (c) Stan Shebs, some rights reserved (CC BY-SA)
- 62. (c) Alison Northup, some rights reserved (CC BY), uploaded by Alison Northup
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- 65. (c) John Marquis, some rights reserved (CC BY-NC-ND)
- 66. (c) Tony Rodd, some rights reserved (CC BY-NC-SA)
- 67. (c) wangyang96, some rights reserved (CC BY-NC)
- 68. (c) Don J Schulte, some rights reserved (CC BY-NC-SA)
- 69. (c) Nina, some rights reserved (CC BY-NC), uploaded by Nina
- 70. (c) ekieraM, some rights reserved (CC BY-NC-ND)
- 71. (c) Judith Lopez Sikora, some rights reserved (CC BY-NC-SA)
- 72. (c) Leigh Anne McConnaughey, some rights reserved (CC BY-SA), uploaded by Leigh Anne McConnaughey
- 73. (c) Patrick Alexander, some rights reserved (CC BY-NC-ND)
- 74. (c) CameliaTWU (away for a while), some rights reserved (CC BY-NC-ND)
- 75. (c) Pauline Singleton, some rights reserved (CC BY-NC), uploaded by Pauline Singleton
- 76. (c) Ahmad Fuad Morad, some rights reserved (CC BY-NC-SA)
- 77. (c) Tom Potterfield, some rights reserved (CC BY-NC-SA)
- 78. (c) 106584015630019574849, some rights reserved (CC BY-NC-SA), uploaded by 106584015630019574849
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