Edited by Lori LaBorde, will_jayne, and Tom Pollard, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
- 2. no rights reserved, uploaded by Kent McFarland
- 3. (c) Tony Alter, some rights reserved (CC BY)
- 4. (c) alexlomas, some rights reserved (CC BY)
- 5. (c) Tom Potterfield, some rights reserved (CC BY-NC-SA)
- 6. (c) Dom Col, some rights reserved (CC BY-NC), uploaded by Dom Col
- 7. (c) Eric Koberle, some rights reserved (CC BY-NC), uploaded by Eric Koberle
- 8. (c) Plant Image Library, some rights reserved (CC BY-SA)
- 9. (c) anonymous, some rights reserved (CC BY-NC-SA)
- 10. (c) Owen Clarkin, some rights reserved (CC BY-NC), uploaded by Owen Clarkin
- 11. (c) maryellenhannibal, some rights reserved (CC BY-NC), uploaded by maryellenhannibal
- 12. (c) annwf7, some rights reserved (CC BY-NC), uploaded by annwf7
- 13. (c) tpollard, some rights reserved (CC BY-NC)
- 14. (c) avislaw, some rights reserved (CC BY-NC)
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- 16. (c) bbk-htx, some rights reserved (CC BY-NC)
- 17. (c) Katja Schulz, some rights reserved (CC BY)
- 18. (c) TreesOfTheWorld.net, some rights reserved (CC BY-NC-SA)
- 19. (c) alexisberry, some rights reserved (CC BY-NC)
- 20. (c) Laura Clark, some rights reserved (CC BY), uploaded by Laura Clark
- 21. (c) Kelly Krechmer, some rights reserved (CC BY-NC), uploaded by Kelly Krechmer
- 22. (c) Steven Severinghaus, some rights reserved (CC BY-NC-SA)
- 23. (c) abirks, some rights reserved (CC BY-NC), uploaded by abirks
- 24. (c) Jean-Pol GRANDMONT, some rights reserved (CC BY-SA)
- 25. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
- 26. (c) Sandra Richard, some rights reserved (CC BY-NC)
- 27. (c) Annika Lindqvist, some rights reserved (CC BY), uploaded by Annika Lindqvist
- 28. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- 29. (c) Michael Blacketter, some rights reserved (CC BY-NC), uploaded by Michael Blacketter
- 30. (c) Tom Norton, some rights reserved (CC BY), uploaded by Tom Norton
- 31. (c) Charlotte Bill, some rights reserved (CC BY-NC), uploaded by Charlotte Bill
- 32. (c) Michael Chassé, some rights reserved (CC BY-NC-ND), uploaded by Michael Chassé
- 33. (c) Katja Schulz, some rights reserved (CC BY), uploaded by Katja Schulz
- 34. (c) Greg Funka, some rights reserved (CC BY-NC), uploaded by Greg Funka
- 35. (c) wundoroo, some rights reserved (CC BY-NC-SA)
- 36. (c) Gerhard Singer, some rights reserved (CC BY-NC-SA)
- 37. (c) Suzanne Cadwell, some rights reserved (CC BY-NC)
- 38. (c) Sabrina Setaro, some rights reserved (CC BY)
- 39. (c) Annkatrin Rose, some rights reserved (CC BY-NC-SA)
- 40. (c) Amy Buthod, some rights reserved (CC BY-NC-SA)
- 41. (c) Lindley Ashline, some rights reserved (CC BY-NC)
- 42. (c) Sandy Wolkenberg, some rights reserved (CC BY), uploaded by Sandy Wolkenberg
- 43. (c) Sten Porse, some rights reserved (CC BY-SA)
- 44. (c) Brian Wulker, some rights reserved (CC BY-NC), uploaded by Brian Wulker
- 45. (c) Emily, some rights reserved (CC BY-NC), uploaded by Emily
- 46. (c) RASSIL, some rights reserved (CC BY-SA)
- 47. (c) Bob Gutowski, some rights reserved (CC BY-NC-SA)
- 48. (c) psweet, some rights reserved (CC BY-SA), uploaded by psweet
- 49. (c) Matt Bertone, all rights reserved, uploaded by Matt Bertone
- 50. (c) Keith Kanoti, Maine Forest Service, USA, some rights reserved (CC BY)
- 51. (c) plnthunter22, some rights reserved (CC BY-NC), uploaded by plnthunter22
- 52. (c) Anita, some rights reserved (CC BY-NC)
- 53. (c) Ryan_Diener, some rights reserved (CC BY-NC), uploaded by Ryan_Diener
- 54. (c) cameralenswrangler, some rights reserved (CC BY-NC), uploaded by cameralenswrangler
- 55. (c) Andrew Dreelin, some rights reserved (CC BY-NC), uploaded by Andrew Dreelin
- 56. (c) Ian Manning, some rights reserved (CC BY), uploaded by Ian Manning
- 57. (c) copepodo, some rights reserved (CC BY-NC-ND)
- 58. (c) timmenzies on Flickr, some rights reserved (CC BY-SA)
- 59. (c) Kari Pihlaviita, some rights reserved (CC BY-NC), uploaded by Kari Pihlaviita
- 60. (c) Charles Wohlers, some rights reserved (CC BY-NC-ND)
- 61. (c) Mark Kluge, some rights reserved (CC BY-NC), uploaded by Mark Kluge
- 62. (c) Melissa McMasters, some rights reserved (CC BY)
- 63. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
- 64. (c) Ron Marusak, some rights reserved (CC BY-NC), uploaded by Ron Marusak
- 65. (c) yixianshuiesuan, some rights reserved (CC BY-NC)
- 66. (c) Matthieu Gauvain, some rights reserved (CC BY-NC), uploaded by Matthieu Gauvain
- 67. (c) Wayne Dumbleton, some rights reserved (CC BY-NC-SA)
- 68. (c) Steve Fahmie, some rights reserved (CC BY-NC), uploaded by Steve Fahmie
- 69. (c) Dwayne Estes, some rights reserved (CC BY-NC), uploaded by Dwayne Estes
- 70. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 71. (c) George Afghan, some rights reserved (CC BY-NC), uploaded by George Afghan
- 72. no rights reserved, uploaded by rockybajada
- 73. (c) Nancy, some rights reserved (CC BY-NC), uploaded by Nancy
- 74. (c) Marv Elliott, some rights reserved (CC BY-NC), uploaded by Marv Elliott
- 75. (c) Pauline Singleton, some rights reserved (CC BY-NC), uploaded by Pauline Singleton
- 76. (c) Hamachidori, some rights reserved (CC BY-SA)
- 77. (c) User:SB_Johnny, some rights reserved (CC BY-SA)
- 78. no rights reserved, uploaded by mefisher
- 79. (c) Anita Gould, some rights reserved (CC BY-NC), uploaded by Anita Gould
- 80. (c) Brad Walker, some rights reserved (CC BY-NC), uploaded by Brad Walker
- 81. (c) hgarris, some rights reserved (CC BY-NC), uploaded by hgarris
- 82. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 83. (c) Ron Seman-IndianaDunesHiking, some rights reserved (CC BY-NC), uploaded by Ron Seman-IndianaDunesHiking
- 84. (c) anonymous, some rights reserved (CC BY)
- 85. (c) leptodia, some rights reserved (CC BY-NC)
- 86. (c) C. E. Timothy Paine, some rights reserved (CC BY-NC)
- 87. (c) Susan J. Hewitt, some rights reserved (CC BY-NC), uploaded by Susan J. Hewitt