Edited by Renata Leite Pitman, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Anthony Zukoff, some rights reserved (CC BY-NC-SA)
- 2. (c) Keith Roragen, some rights reserved (CC BY-NC-SA)
- 3. (c) Luciano 95, some rights reserved (CC BY-NC-SA)
- 4. (c) zufi, some rights reserved (CC BY-NC)
- 5. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 6. (c) Jonathan (JC) Carpenter, some rights reserved (CC BY-NC), uploaded by Jonathan (JC) Carpenter
- 7. (c) Katja Schulz, some rights reserved (CC BY)
- 8. (c) Grahame, some rights reserved (CC BY-NC-ND), uploaded by Grahame
- 9. (c) James Shelton, some rights reserved (CC BY-NC-SA), uploaded by James Shelton
- 10. (c) Martin R. Lucas, some rights reserved (CC BY-NC), uploaded by Martin R. Lucas
- 11. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 12. (c) Judy Gallagher, some rights reserved (CC BY-SA), uploaded by Judy Gallagher
- 13. (c) molanic, some rights reserved (CC BY-NC), uploaded by molanic
- 14. (c) Donald Hobern, some rights reserved (CC BY)
- 15. (c) kim fleming, some rights reserved (CC BY-NC-SA)
- 16. (c) James W. Beck, some rights reserved (CC BY-NC), uploaded by James W. Beck
- 17. (c) Paul Bedell, some rights reserved (CC BY-NC-SA)
- 18. (c) BlueRidgeKitties, some rights reserved (CC BY-NC-SA)
- 19. (c) Sean McCann, some rights reserved (CC BY-NC-SA)
- 20. (c) Steve Pelikan, some rights reserved (CC BY-NC), uploaded by Steve Pelikan
- 21. (c) Macroscopic Solutions, some rights reserved (CC BY-NC)
- 22. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 23. (c) ColinDJones, some rights reserved (CC BY-NC), uploaded by ColinDJones
- 24. (c) homeden, some rights reserved (CC BY-NC)
- 25. (c) Nick Block, some rights reserved (CC BY), uploaded by Nick Block
- 26. (c) A. Jaszlics, some rights reserved (CC BY-NC)
- 27. (c) Roger Shaw, some rights reserved (CC BY-NC-SA)
- 28. (c) Ted MacRae, some rights reserved (CC BY-NC-ND)
- 29. (c) Brad Smith, some rights reserved (CC BY-NC)
- 30. (c) Steven Severinghaus, some rights reserved (CC BY-NC-SA)
- 31. (c) Beth Katz, some rights reserved (CC BY-NC-SA), uploaded by Beth Katz
- 32. (c) Alex Bairstow, some rights reserved (CC BY-NC), uploaded by Alex Bairstow
- 33. (c) krancmm, some rights reserved (CC BY-NC), uploaded by krancmm
- 34. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 35. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- 36. (c) shinnickj, some rights reserved (CC BY-NC), uploaded by shinnickj
- 37. (c) Mauro Mandrioli, some rights reserved (CC BY-NC), uploaded by Mauro Mandrioli
- 38. (c) Stuart Tingley, some rights reserved (CC BY-NC), uploaded by Stuart Tingley
- 39. (c) KT Thalin, some rights reserved (CC BY-NC), uploaded by KT Thalin
- 40. (c) Katja Schulz, some rights reserved (CC BY), uploaded by Katja Schulz
- 41. (c) cyric, some rights reserved (CC BY-NC-SA), uploaded by cyric
- 42. (c) Gertrud K., some rights reserved (CC BY-NC-SA)
- 43. (c) olbugs, some rights reserved (CC BY-NC), uploaded by olbugs
- 44. (c) J. Michael Raby, some rights reserved (CC BY-NC-ND)
- 45. (c) David Hill, some rights reserved (CC BY)
- 46. (c) Anita363, some rights reserved (CC BY-NC)
- 47. no rights reserved, uploaded by Jesse Rorabaugh
- 48. (c) Jeremy Collison, some rights reserved (CC BY-NC), uploaded by Jeremy Collison
- 49. (c) Mick Talbot, some rights reserved (CC BY-NC-SA)
- 50. (c) Lena Struwe, some rights reserved (CC BY-SA), uploaded by Lena Struwe
- 51. (c) John P Friel, some rights reserved (CC BY), uploaded by John P Friel
- 52. (c) Omayra, some rights reserved (CC BY-NC), uploaded by Omayra
- 53. (c) Mike Quinn, Austin, TX, some rights reserved (CC BY-NC), uploaded by Mike Quinn, Austin, TX
- 54. (c) Ryan Hodnett, some rights reserved (CC BY-SA)
- 55. (c) Joshua Doby, some rights reserved (CC BY-NC), uploaded by Joshua Doby
- 56. (c) promiseminime, some rights reserved (CC BY)
- 57. (c) Paul Bedell, some rights reserved (CC BY-SA), uploaded by Paul Bedell
- 58. (c) Jenn Forman Orth, some rights reserved (CC BY-NC-SA)
- 59. (c) Eric Knopf, some rights reserved (CC BY-NC), uploaded by Eric Knopf
- 60. (c) Nikolai Vladimirov, some rights reserved (CC BY-NC), uploaded by Nikolai Vladimirov
- 61. (c) John Boback, some rights reserved (CC BY-NC), uploaded by John Boback
- 62. (c) oldbilluk, some rights reserved (CC BY-NC-SA)
- 63. (c) Chris Moody, some rights reserved (CC BY-NC-ND)
- 64. (c) gbohne, some rights reserved (CC BY-SA)
- 65. (c) Cheryl Harleston López Espino, some rights reserved (CC BY-NC-ND), uploaded by Cheryl Harleston López Espino
- 66. (c) Judy Gallagher, some rights reserved (CC BY)
- 67. (c) Even Dankowicz, some rights reserved (CC BY), uploaded by Even Dankowicz
- 68. (c) Simon Grove, some rights reserved (CC BY-NC), uploaded by Simon Grove