Edited by Sara Alcalá Jiménez, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) jefferykarafa, some rights reserved (CC BY-NC), uploaded by jefferykarafa
- 2. (c) MarvalPhotography19, some rights reserved (CC BY-NC-ND), uploaded by MarvalPhotography19
- 3. (c) Kala Murphy King, some rights reserved (CC BY-NC-ND), uploaded by Kala Murphy King
- 4. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 5. (c) guyincognito, some rights reserved (CC BY-NC), uploaded by guyincognito
- 6. (c) Dmitry Mozzherin, some rights reserved (CC BY-NC-SA)
- 7. (c) Juan Emilio, some rights reserved (CC BY-SA)
- 8. (c) Michael Lynch, some rights reserved (CC BY-NC), uploaded by Michael Lynch
- 9. (c) Paul G. Johnson, some rights reserved (CC BY-NC-SA), uploaded by Paul G. Johnson
- 10. (c) caroline legg, some rights reserved (CC BY)
- 11. (c) Alan R. Biggs, some rights reserved (CC BY-NC-ND), uploaded by Alan R. Biggs
- 12. (c) Dhaval Vargiya, some rights reserved (CC BY-SA)
- 13. (c) Константин Самодуров, some rights reserved (CC BY-NC), uploaded by Константин Самодуров
- 14. (c) Roberto R. Calderón, some rights reserved (CC BY-NC), uploaded by Roberto R. Calderón
- 15. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
- 16. (c) Cheryl Rosenfeld, some rights reserved (CC BY-NC), uploaded by Cheryl Rosenfeld
- 17. (c) Don Loarie, some rights reserved (CC BY-NC-SA)
- 18. (c) Blake Matheson, some rights reserved (CC BY-NC)
- 19. (c) Nigel Voaden, some rights reserved (CC BY)
- 20. (c) Mark Peck, some rights reserved (CC BY-NC-SA)
- 21. (c) Seig, some rights reserved (CC BY-NC), uploaded by Seig
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- 23. (c) lemurtaquin, some rights reserved (CC BY-NC), uploaded by lemurtaquin
- 24. (c) Paul Reeves, some rights reserved (CC BY-NC-SA), uploaded by Paul Reeves
- 25. (c) Jamie Chavez, some rights reserved (CC BY-NC)
- 26. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 27. (c) Andrew Cannizzaro, some rights reserved (CC BY)
- 28. (c) José Antonio Linage Espinosa, some rights reserved (CC BY-NC), uploaded by José Antonio Linage Espinosa
- 29. (c) Blair Dudeck, some rights reserved (CC BY), uploaded by Blair Dudeck
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- 31. (c) Pablo Balduvino, some rights reserved (CC BY-NC), uploaded by Pablo Balduvino
- 32. (c) Bridget Spencer, some rights reserved (CC BY-NC), uploaded by Bridget Spencer
- 33. (c) John D Reynolds, some rights reserved (CC BY-NC), uploaded by John D Reynolds
- 34. (c) Ryan Jones, some rights reserved (CC BY-NC), uploaded by Ryan Jones
- 35. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 36. (c) Larry Meade, some rights reserved (CC BY-NC-SA)
- 37. (c) John Clough, some rights reserved (CC BY-NC), uploaded by John Clough
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- 39. (c) roy pilcher, some rights reserved (CC BY-NC), uploaded by roy pilcher
- 40. (c) Ad Konings, some rights reserved (CC BY-NC), uploaded by Ad Konings
- 41. (c) Jason Headley, some rights reserved (CC BY-NC), uploaded by Jason Headley
- 42. (c) Frans Vandewalle, some rights reserved (CC BY-NC)
- 43. (c) Omar Del Toro, some rights reserved (CC BY-NC), uploaded by Omar Del Toro
- 44. (c) Bert Filemyr, some rights reserved (CC BY-NC), uploaded by Bert Filemyr
- 45. (c) nancylightfoot, some rights reserved (CC BY-NC), uploaded by nancylightfoot
- 46. (c) Scott O'Donnell, some rights reserved (CC BY-NC), uploaded by Scott O'Donnell
- 47. (c) Andrew Thompson, some rights reserved (CC BY-NC), uploaded by Andrew Thompson
- 48. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
- 49. (c) Craig K. Hunt, some rights reserved (CC BY-NC-ND), uploaded by Craig K. Hunt
- 50. (c) karorem, some rights reserved (CC BY-NC), uploaded by karorem
- 51. (c) Nick Chill, some rights reserved (CC BY-NC-ND)
- 52. (c) world_lineage, some rights reserved (CC BY-NC), uploaded by world_lineage
- 53. (c) James M. Maley, some rights reserved (CC BY), uploaded by James M. Maley
- 54. (c) joannerusso, some rights reserved (CC BY-NC), uploaded by joannerusso
- 55. (c) Mike Baird, some rights reserved (CC BY)
- 56. (c) Carlos Moura, some rights reserved (CC BY-NC), uploaded by Carlos Moura
- 57. (c) Daniel Alexander Carrillo Mtz, some rights reserved (CC BY-NC)
- 58. (c) Gordon Karre, some rights reserved (CC BY-NC), uploaded by Gordon Karre
- 59. (c) fabiomanfredini, some rights reserved (CC BY-NC), uploaded by fabiomanfredini
- 60. (c) assmann, some rights reserved (CC BY-NC), uploaded by assmann
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- 62. (c) BJ Stacey, some rights reserved (CC BY-NC), uploaded by BJ Stacey
- 63. (c) MARMAR, some rights reserved (CC BY-NC), uploaded by MARMAR
- 64. (c) Pete Followill, some rights reserved (CC BY-NC), uploaded by Pete Followill
- 65. (c) daverowe, some rights reserved (CC BY-NC)
- 66. (c) Dan Roach, some rights reserved (CC BY-NC), uploaded by Dan Roach
- 67. no rights reserved, uploaded by Kyle Nessen
- 68. (c) Scott Buckel, some rights reserved (CC BY-NC), uploaded by Scott Buckel
- 69. (c) Basar, some rights reserved (CC BY-SA)
- 70. (c) Susan Elliott, some rights reserved (CC BY-NC), uploaded by Susan Elliott
- 71. (c) Leslie S, some rights reserved (CC BY-NC), uploaded by Leslie S
- 72. (c) Mike Dufour, some rights reserved (CC BY-NC), uploaded by Mike Dufour
- 73. (c) Jonathan Eisen, some rights reserved (CC BY), uploaded by Jonathan Eisen
- 74. (c) Jamie Drake, some rights reserved (CC BY-NC-SA)
- 75. (c) Tom Benson, some rights reserved (CC BY-NC-ND)
- 76. (c) SpyingNaturalist, some rights reserved (CC BY-NC), uploaded by SpyingNaturalist
- 77. (c) aaronr, some rights reserved (CC BY-NC), uploaded by aaronr
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