Edited by Rachel Bosley and Alistair MacKenzie, M. Sc., some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Jenn Forman Orth, some rights reserved (CC BY-NC-SA)
- 2. (c) Kevin Ripka, some rights reserved (CC BY)
- 3. (c) Susan Elliott, some rights reserved (CC BY-NC), uploaded by Susan Elliott
- 4. (c) crgillette, some rights reserved (CC BY-NC), uploaded by crgillette
- 5. (c) Ken-ichi Ueda, some rights reserved (CC BY)
- 6. (c) Kyhl Austin, some rights reserved (CC BY-NC), uploaded by Kyhl Austin
- 7. (c) Royal Tyler, some rights reserved (CC BY-NC-SA), uploaded by Royal Tyler
- 8. (c) Anna Bennett, some rights reserved (CC BY-NC), uploaded by Anna Bennett
- 9. (c) Anita Gould, some rights reserved (CC BY-NC), uploaded by Anita Gould
- 10. (c) Isabel, some rights reserved (CC BY-NC), uploaded by Isabel
- 11. (c) David Kaposi, some rights reserved (CC BY-NC), uploaded by David Kaposi
- 12. (c) Scott King, some rights reserved (CC BY-NC)
- 13. (c) nolieschneider, some rights reserved (CC BY-NC), uploaded by nolieschneider
- 14. (c) Fyn Kynd, some rights reserved (CC BY)
- 15. (c) Dick, some rights reserved (CC BY-NC-SA)
- 16. (c) Andrew Simon, some rights reserved (CC BY-NC), uploaded by Andrew Simon
- 17. (c) G. L. Dearman, some rights reserved (CC BY-NC), uploaded by G. L. Dearman
- 18. (c) Monica Krancevic, some rights reserved (CC BY-NC), uploaded by Monica Krancevic
- 19. (c) Mark D. Read, some rights reserved (CC BY-NC), uploaded by Mark D. Read
- 20. (c) Fluff Berger, some rights reserved (CC BY-SA), uploaded by Fluff Berger
- 21. (c) Katja Schulz, some rights reserved (CC BY)
- 22. (c) Laura Gaudette, some rights reserved (CC BY), uploaded by Laura Gaudette
- 23. (c) John P Friel, some rights reserved (CC BY), uploaded by John P Friel
- 24. (c) Kent Miller, some rights reserved (CC BY-ND), uploaded by Kent Miller
- 25. no rights reserved, uploaded by Zygy
- 26. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
- 27. (c) John Trent, some rights reserved (CC BY-NC-ND), uploaded by John Trent
- 28. (c) James W. Beck, some rights reserved (CC BY-NC), uploaded by James W. Beck
- 29. (c) Ann Gordon, some rights reserved (CC BY-NC), uploaded by Ann Gordon
- 30. (c) summerazure, some rights reserved (CC BY-NC-SA)
- 31. (c) Nick Block, some rights reserved (CC BY), uploaded by Nick Block
- 32. (c) CatherineK, some rights reserved (CC BY-SA), uploaded by CatherineK
- 33. (c) Anita363, some rights reserved (CC BY-NC)
- 34. (c) Erika Mitchell, some rights reserved (CC BY-NC), uploaded by Erika Mitchell
- 35. (c) Rick Ballard, some rights reserved (CC BY-NC), uploaded by Rick Ballard
- 36. (c) jessierendl, some rights reserved (CC BY-NC)
- 37. (c) Stuart Tingley, some rights reserved (CC BY-NC), uploaded by Stuart Tingley
- 38. (c) Andy Reago & Chrissy McClarren, some rights reserved (CC BY)
- 39. (c) B Mlry, some rights reserved (CC BY-NC)
- 40. (c) Fyn Kynd, some rights reserved (CC BY-SA), uploaded by Fyn Kynd
- 41. (c) Seabrooke Leckie, some rights reserved (CC BY-NC-ND)
- 42. (c) skitterbug, some rights reserved (CC BY), uploaded by skitterbug
- 43. (c) Vlad Proklov, some rights reserved (CC BY-NC)
- 44. (c) Jonathan (JC) Carpenter, some rights reserved (CC BY-NC), uploaded by Jonathan (JC) Carpenter
- 45. (c) joannerusso, some rights reserved (CC BY-NC), uploaded by joannerusso
- 46. (c) dbeadle, some rights reserved (CC BY-NC), uploaded by dbeadle
- 47. (c) Ashley M Bradford, some rights reserved (CC BY-NC), uploaded by Ashley M Bradford
- 48. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 49. (c) mark3939, some rights reserved (CC BY-NC), uploaded by mark3939
- 50. (c) Ilona L, some rights reserved (CC BY-NC-SA)
- 51. (c) Bill Keim, some rights reserved (CC BY)
- 52. (c) Michael K. Oliver, some rights reserved (CC BY), uploaded by Michael K. Oliver
- 53. (c) Diane P. Brooks, some rights reserved (CC BY-NC-SA), uploaded by Diane P. Brooks
- 54. (c) Suso Tizón, some rights reserved (CC BY-NC-SA), uploaded by Suso Tizón
- 55. (c) Jim Johnson, some rights reserved (CC BY-NC-ND), uploaded by Jim Johnson
- 56. (c) Stott Noble, some rights reserved (CC BY-NC), uploaded by Stott Noble