Photos:
- 1. (c) Frank Mayfield, some rights reserved (CC BY-SA)
- 2. (c) Matt Lavin, some rights reserved (CC BY-SA)
- 3. (c) JustTooLazy, some rights reserved (CC BY)
- 4. (c) beautifulcataya, some rights reserved (CC BY-NC-ND)
- 5. (c) Ashley M Bradford, some rights reserved (CC BY-NC), uploaded by Ashley M Bradford
- 6. (c) Bob O'Kennon, some rights reserved (CC BY-NC), uploaded by Bob O'Kennon
- 7. (c) Steve Chilton, some rights reserved (CC BY-NC-ND)
- 8. (c) dnydick, some rights reserved (CC BY-NC), uploaded by dnydick
- 9. (c) elise_pt, some rights reserved (CC BY-NC), uploaded by elise_pt
- 10. (c) David Hofmann, some rights reserved (CC BY-NC-ND)
- 11. (c) tapaculo99, some rights reserved (CC BY-NC), uploaded by tapaculo99
- 12. (c) Bengt Rehnström, some rights reserved (CC BY)
- 13. (c) CAJC: in the PNW, some rights reserved (CC BY-SA)
- 14. (c) Laurel F, some rights reserved (CC BY-SA)
- 15. (c) judith holm, some rights reserved (CC BY-NC-ND), uploaded by judith holm
- 16. (c) Gravitywave, some rights reserved (CC BY-NC-SA)
- 17. (c) flaviaegli, some rights reserved (CC BY-NC), uploaded by flaviaegli
- 18. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
- 19. (c) Naturalist Eve, all rights reserved, uploaded by Naturalist Eve
- 20. (c) Ferran Turmo Gort, some rights reserved (CC BY-NC-SA)
- 21. (c) Urmas Ojango, some rights reserved (CC BY-NC)
- 22. (c) Bryant Olsen, some rights reserved (CC BY-NC)
- 23. (c) Tony Frates, some rights reserved (CC BY-NC-SA)
- 24. (c) Tom Hilton, some rights reserved (CC BY)
- 25. (c) stormcatcher, some rights reserved (CC BY-NC), uploaded by stormcatcher
- 26. (c) Sam Thomas, some rights reserved (CC BY-NC-SA)
- 27. (c) Marshal Hedin, some rights reserved (CC BY)
- 28. (c) Jörg Hempel, some rights reserved (CC BY-SA)
- 29. (c) 2009 Barry Breckling, some rights reserved (CC BY-NC-SA)
- 30. (c) Lena Zentall, some rights reserved (CC BY-NC), uploaded by Lena Zentall
- 31. (c) 2014 Zoya Akulova, some rights reserved (CC BY-NC)
- 32. (c) Emőke Dénes, some rights reserved (CC BY-SA)
- 33. (c) Gerald and Buff Corsi, some rights reserved (CC BY-NC-SA)
- 34. (c) Sciadopitys, some rights reserved (CC BY-SA)
- 35. (c) Jon Sullivan, some rights reserved (CC BY)
- 36. (c) Willie Angus, some rights reserved (CC BY-NC)
- 37. (c) Alwyn Ladell, some rights reserved (CC BY-NC-ND)
- 38. (c) Dorota (Dorothy), some rights reserved (CC BY-SA)
- 39. (c) George F Mayfield, some rights reserved (CC BY-SA)
- 40. (c) José María Escolano, some rights reserved (CC BY-NC-SA)
- 41. (c) AnneTanne, some rights reserved (CC BY-NC)
- 42. (c) Steve Guttman, some rights reserved (CC BY-NC-ND)
- 43. (c) Todd Ramsden, some rights reserved (CC BY-NC), uploaded by Todd Ramsden
- 44. (c) Hans-Jürgen Becker, some rights reserved (CC BY-NC-SA)
- 45. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 46. (c) Damon Tighe, some rights reserved (CC BY-NC), uploaded by Damon Tighe
- 47. (c) Mr Stobbe, some rights reserved (CC BY-NC-SA)
- 48. (c) Jonathan (JC) Carpenter, some rights reserved (CC BY-NC), uploaded by Jonathan (JC) Carpenter
- 49. (c) Anthony Mendoza, some rights reserved (CC BY-NC-SA)
- 50. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 51. no rights reserved
- 52. (c) Carol Jacobs-Carre, some rights reserved (CC BY-NC-ND)
- 53. (c) Phil Sellens, some rights reserved (CC BY)
- 54. (c) Cullen Hanks, some rights reserved (CC BY-NC), uploaded by Cullen Hanks
- 55. (c) Patrick Alexander, some rights reserved (CC BY-NC-ND)
- 56. (c) Peter O'Connor, some rights reserved (CC BY-SA)
- 57. (c) Kristian Peters, some rights reserved (CC BY-NC-SA)
- 58. (c) M.M. R, some rights reserved (CC BY-NC)
- 59. (c) Jackie Grant, some rights reserved (CC BY-NC-SA), uploaded by Jackie Grant
- 60. (c) Tim Shortell, some rights reserved (CC BY-NC), uploaded by Tim Shortell
- 61. (c) Matthew Wang, some rights reserved (CC BY-NC), uploaded by Matthew Wang
- 62. Ejohnsonboulder, no known copyright restrictions (public domain)
- 63. (c) randomtruth, some rights reserved (CC BY-NC-SA)
- 64. (c) Bill Bouton, some rights reserved (CC BY-SA)
- 65. (c) Tim Giller, some rights reserved (CC BY-NC), uploaded by Tim Giller
- 66. (c) BJ Stacey, some rights reserved (CC BY-NC), uploaded by BJ Stacey
- 67. (c) freejinn, some rights reserved (CC BY-NC)
- 68. (c) Stanislav Krejčík, some rights reserved (CC BY)
- 69. (c) Jennifer Rycenga, some rights reserved (CC BY-NC), uploaded by Jennifer Rycenga
- 70. (c) 2015 Barry Breckling, some rights reserved (CC BY-NC-SA)
- 71. (c) richard mcneill, some rights reserved (CC BY-NC)
- 72. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
- 73. (c) Forest & Kim Starr, some rights reserved (CC BY)
- 74. (c) Fritzflohrreynolds, some rights reserved (CC BY-SA)
- 75. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
- 76. (c) Bri Weldon, some rights reserved (CC BY)
- 77. (c) mtwig, some rights reserved (CC BY-NC)
- 78. (c) Kaitlin MacLean, some rights reserved (CC BY-NC), uploaded by Kaitlin MacLean
- 79. (c) Katja Schulz, some rights reserved (CC BY)
- 80. (c) Christopher Tracey, some rights reserved (CC BY-NC-SA), uploaded by Christopher Tracey
- 81. (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA)
- 82. (c) Andreas Rockstein, some rights reserved (CC BY-SA)
- 83. (c) Steve Matson, some rights reserved (CC BY-NC), uploaded by Steve Matson
- 84. (c) David Bygott, some rights reserved (CC BY-NC-SA)
- 85. (c) --Tico--, some rights reserved (CC BY-NC-ND)
- 86. (c) José MarÃa Escolano, some rights reserved (CC BY-NC-SA)
- 87. (c) Biopix, some rights reserved (CC BY-NC)
- 88. (c) 2008 Keir Morse, some rights reserved (CC BY-NC-SA)
- 89. (c) James K. Lindsey, some rights reserved (CC BY-SA)
- 90. (c) Jason Miller, some rights reserved (CC BY-NC), uploaded by Jason Miller
- 91. (c) bendingtree, some rights reserved (CC BY-NC), uploaded by bendingtree
- 92. (c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
- 93. (c) Aaron Ellig, some rights reserved (CC BY-ND), uploaded by Aaron Ellig
- 94. (c) Bas Kers, some rights reserved (CC BY-NC-SA)
- 95. (c) John Boback, some rights reserved (CC BY-NC), uploaded by John Boback
- 96. (c) Hörður Kristinsson, some rights reserved (CC BY-NC)
- 97. (c) Thayne Tuason, some rights reserved (CC BY-NC)
- 98. (c) Hanna Davis, some rights reserved (CC BY-NC), uploaded by Hanna Davis
- 99. (c) botanybee, some rights reserved (CC BY-NC)
- 100. (c) Rick Williams, some rights reserved (CC BY-NC), uploaded by Rick Williams
- 101. (c) Joe Decruyenaere, some rights reserved (CC BY-SA)
- 102. (c) Roger Butterfield, some rights reserved (CC BY-NC-SA)
- 103. (c) Petritap, some rights reserved (CC BY-SA)
- 104. (c) Will Freyman, some rights reserved (CC BY-NC), uploaded by Will Freyman
- 105. (c) Dan and Raymond, some rights reserved (CC BY-NC-SA)
- 106. (c) Anita, some rights reserved (CC BY-NC)
- 107. (c) mtash, some rights reserved (CC BY-NC), uploaded by mtash
- 108. (c) Alex Abair, some rights reserved (CC BY-NC), uploaded by Alex Abair
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