Edited by Antonio W. Salas, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Cláudio Dias Timm, some rights reserved (CC BY-NC-SA)
- 2. (c) Jorge Schlemmer, some rights reserved (CC BY-NC), uploaded by Jorge Schlemmer
- 3. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 4. (c) José Antonio Linage Espinosa, some rights reserved (CC BY-NC), uploaded by José Antonio Linage Espinosa
- 5. (c) Kala Murphy King, some rights reserved (CC BY-NC-ND), uploaded by Kala Murphy King
- 6. (c) Dario Sanches, some rights reserved (CC BY-SA)
- 7. (c) David Cook Wildlife Photography, some rights reserved (CC BY-NC)
- 8. (c) Mikko Koponen, some rights reserved (CC BY)
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- 10. (c) Paul Fenwick, some rights reserved (CC BY-NC), uploaded by Paul Fenwick
- 11. (c) 116916927065934112165, some rights reserved (CC BY), uploaded by 116916927065934112165
- 12. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 13. (c) Owen Strickland, some rights reserved (CC BY), uploaded by Owen Strickland
- 14. (c) cyric, some rights reserved (CC BY-NC-SA), uploaded by cyric
- 15. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 16. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 17. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 18. (c) U.S. Fish and Wildlife Service Northeast Region, some rights reserved (CC BY)
- 19. (c) Bill Bouton, some rights reserved (CC BY-SA)
- 20. (c) roy pilcher, some rights reserved (CC BY-NC), uploaded by roy pilcher
- 21. (c) Vince Smith, some rights reserved (CC BY-NC-SA)
- 22. (c) Gunnar Engblom, some rights reserved (CC BY-NC-SA)
- 23. (c) Christian Artuso, some rights reserved (CC BY-NC-ND), uploaded by Christian Artuso
- 24. (c) Len Blumin, some rights reserved (CC BY)
- 25. (c) Gustavo Durán, some rights reserved (CC BY-NC-SA)
- 26. (c) Nick Chill, some rights reserved (CC BY-NC-ND)
- 27. (c) Pablo Necochea, some rights reserved (CC BY-NC)
- 28. (c) Quartl, some rights reserved (CC BY-SA)
- 29. (c) Peggy Romfh, some rights reserved (CC BY-NC), uploaded by Peggy Romfh
- 30. (c) Alastair Rae, some rights reserved (CC BY-SA)
- 31. (c) obscurus, some rights reserved (CC BY-NC), uploaded by obscurus
- 32. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 33. (c) jomilo75, some rights reserved (CC BY)
- 34. (c) Cristóbal Alvarado Minic, some rights reserved (CC BY)
- 35. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 36. (c) dlbowls, some rights reserved (CC BY-NC), uploaded by dlbowls
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- 38. (c) Maggie.Smith, some rights reserved (CC BY-NC)
- 39. (c) Bobby McCabe, some rights reserved (CC BY), uploaded by Bobby McCabe
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- 41. (c) Bob, some rights reserved (CC BY-NC-ND)
- 42. (c) Frank Schulenburg, some rights reserved (CC BY-SA)
- 43. (c) Kristin A. Bakkegard, some rights reserved (CC BY-NC), uploaded by Kristin A. Bakkegard
- 44. (c) Nicolas Olejnik, some rights reserved (CC BY-NC), uploaded by Nicolas Olejnik
- 45. (c) joannerusso, some rights reserved (CC BY-NC), uploaded by joannerusso
- 46. (c) Victor W Fazio III, some rights reserved (CC BY-NC), uploaded by Victor W Fazio III
- 47. (c) David Cook, some rights reserved (CC BY-NC)
- 48. (c) Geoff Coe, some rights reserved (CC BY-NC-ND)
- 49. (c) Nick Chill, some rights reserved (CC BY-NC-SA)
- 50. no rights reserved, uploaded by Kyle Nessen
- 51. (c) Leandro Alvarez, some rights reserved (CC BY-NC-SA), uploaded by Leandro Alvarez
- 52. (c) Luciano Giussani, some rights reserved (CC BY-NC-SA)
- 53. (c) Nicole LaRoche, some rights reserved (CC BY-NC), uploaded by Nicole LaRoche
- 54. (c) barloventomagico, some rights reserved (CC BY-NC-ND)
- 55. (c) Luca Boscain, some rights reserved (CC BY-NC), uploaded by Luca Boscain
- 56. (c) Biodiversity Heritage Library, some rights reserved (CC BY)
- 57. (c) David Nowell, some rights reserved (CC BY-NC-ND)
- 58. (c) Salvador Poot Villanueva, some rights reserved (CC BY-NC), uploaded by Salvador Poot Villanueva
- 59. (c) anonymous, some rights reserved (CC BY-SA)
- 60. (c) Christoph Moning, some rights reserved (CC BY), uploaded by Christoph Moning
- 61. (c) Frans Vandewalle, some rights reserved (CC BY-NC)
- 62. (c) Tony Roberts, some rights reserved (CC BY-NC-SA)
- 63. (c) ian wetton, some rights reserved (CC BY-NC-ND)
- 64. (c) Bernard DUPONT, some rights reserved (CC BY-SA)
- 65. (c) Jakob Fahr, some rights reserved (CC BY-NC), uploaded by Jakob Fahr
- 66. no rights reserved, uploaded by Diego Carús
- 67. (c) Jeremy Flanagan, some rights reserved (CC BY-NC), uploaded by Jeremy Flanagan
- 68. (c) osoandino, some rights reserved (CC BY-NC), uploaded by osoandino
- 69. (c) Julien Renoult, some rights reserved (CC BY), uploaded by Julien Renoult
- 70. (c) Julian Londono, some rights reserved (CC BY-SA)
- 71. (c) Deyvson Moutinho Caliman, some rights reserved (CC BY-NC), uploaded by Deyvson Moutinho Caliman
- 72. (c) Monics Paredes, some rights reserved (CC BY-NC), uploaded by Monics Paredes
- 73. (c) rick-uhlen, some rights reserved (CC BY-NC), uploaded by rick-uhlen
- 74. (c) Paul Joyce, some rights reserved (CC BY-NC)
- 75. (c) Lip Kee, some rights reserved (CC BY-SA)
- 76. (c) Erin Keller, some rights reserved (CC BY-NC-ND)
- 77. (c) Eric Carpenter, some rights reserved (CC BY-NC), uploaded by Eric Carpenter