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Photo Credits
- 1. (c) Francisco Farriols Sarabia, some rights reserved (CC BY), uploaded by Francisco Farriols Sarabia
- 2. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 3. (c) goforanimals, some rights reserved (CC BY-NC)
- 4. (c) Vearl Brown, some rights reserved (CC BY-NC)
- 5. (c) Jason Headley, some rights reserved (CC BY-NC), uploaded by Jason Headley
- 6. (c) Sergey Yeliseev, some rights reserved (CC BY-NC-ND)
- 7. (c) Анна Голубева, some rights reserved (CC BY-NC-ND), uploaded by Анна Голубева
- 8. (c) Mike Baird, some rights reserved (CC BY)
- 9. (c) Nik Borrow, some rights reserved (CC BY-NC)
- 10. (c) world_lineage, some rights reserved (CC BY-NC), uploaded by world_lineage
- 11. (c) Di Franklin, some rights reserved (CC BY-ND), uploaded by Di Franklin
- 12. (c) Eric Bégin, some rights reserved (CC BY-NC-ND)
- 13. (c) Andrew Cannizzaro, some rights reserved (CC BY), uploaded by Andrew Cannizzaro
- 14. (c) Alena Dehm, some rights reserved (CC BY-NC), uploaded by Alena Dehm
- 15. (c) kjohnston406, some rights reserved (CC BY-NC), uploaded by kjohnston406
- 16. (c) Oliver Rivo, some rights reserved (CC BY-NC-SA)
- 17. (c) Bob McDougall, some rights reserved (CC BY-NC), uploaded by Bob McDougall
- 18. (c) Sarah, some rights reserved (CC BY-NC-ND)
- 19. (c) JJ Harrison, some rights reserved (CC BY-SA)
- 20. (c) Robbie, some rights reserved (CC BY-NC-ND)
- 21. (c) roy pilcher, some rights reserved (CC BY-NC), uploaded by roy pilcher
- 22. (c) Александр, some rights reserved (CC BY-NC-SA), uploaded by Александр
- 23. (c) Rushen, some rights reserved (CC BY-NC)
- 24. (c) Joanne Muis Redwood, some rights reserved (CC BY-NC), uploaded by Joanne Muis Redwood
- 25. (c) Hong, some rights reserved (CC BY-NC), uploaded by Hong
- 26. (c) José Manuel Armengod, some rights reserved (CC BY-ND)
- 27. (c) Kevin Schafer, some rights reserved (CC BY-NC-ND), uploaded by Kevin Schafer
- 28. (c) Arthur Tahara, some rights reserved (CC BY-NC-ND)
- 29. (c) samuelrodgers752, some rights reserved (CC BY)
- 30. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 31. (c) Gareth Preiss, some rights reserved (CC BY-NC), uploaded by Gareth Preiss
- 32. (c) nutmeg66, some rights reserved (CC BY-NC-ND)
- 33. (c) Charlieatyourservice, some rights reserved (CC BY-SA)
- 34. (c) Ján Svetlík, some rights reserved (CC BY-NC-ND)
- 35. (c) Subhadra Devi, some rights reserved (CC BY), uploaded by Subhadra Devi
- 36. (c) Mikhail Ezdakov, some rights reserved (CC BY-NC), uploaded by Mikhail Ezdakov
- 37. (c) Jakob Fahr, some rights reserved (CC BY-NC), uploaded by Jakob Fahr
- 38. (c) Graham Clarkson, some rights reserved (CC BY-NC), uploaded by Graham Clarkson
- 39. (c) Erland Refling Nielsen, some rights reserved (CC BY-NC)
- 40. (c) deborod, some rights reserved (CC BY-NC), uploaded by deborod
- 41. (c) Graeme Shannon (Colorado State University), some rights reserved (CC BY)
- 42. (c) Rene Ehrhardt, some rights reserved (CC BY)
- 43. (c) Roberto Ghiglia, some rights reserved (CC BY-NC), uploaded by Roberto Ghiglia
- 44. (c) Alison Sheehey, some rights reserved (CC BY-NC-ND), uploaded by Alison Sheehey
- 45. (c) Nikolai Vladimirov, some rights reserved (CC BY-NC), uploaded by Nikolai Vladimirov
- 46. (c) Eden Fontes, some rights reserved (CC BY-NC), uploaded by Eden Fontes
- 47. no rights reserved, uploaded by Abhas Misraraj
- 48. (c) Michael Jefferies, some rights reserved (CC BY-NC)
- 49. (c) Laura C. Correa Blain, some rights reserved (CC BY-NC), uploaded by Laura C. Correa Blain
- 50. (c) Michael Hains, some rights reserved (CC BY-NC), uploaded by Michael Hains
- 51. (c) Chen Wu, some rights reserved (CC BY)
- 52. (c) animalita, some rights reserved (CC BY-NC), uploaded by animalita
- 53. (c) Bernard DUPONT, some rights reserved (CC BY-SA)
- 54. (c) cotinis, some rights reserved (CC BY-NC-SA)
- 55. (c) Riccardo Molajoli, some rights reserved (CC BY-NC), uploaded by Riccardo Molajoli
- 56. (c) gwwarbler, some rights reserved (CC BY-NC)
- 57. (c) Chris Cook, some rights reserved (CC BY-NC), uploaded by Chris Cook
- 58. (c) Vipin Baliga, some rights reserved (CC BY)
- 59. (c) Christian Schwarz, some rights reserved (CC BY-NC), uploaded by Christian Schwarz
- 60. (c) Paul G. Johnson, some rights reserved (CC BY-NC-SA), uploaded by Paul G. Johnson
- 61. (c) Firos AK, some rights reserved (CC BY), uploaded by Firos AK
- 62. (c) David Rosen, some rights reserved (CC BY-NC)
- 63. (c) Kurt Hennige, some rights reserved (CC BY-NC), uploaded by Kurt Hennige
- 64. (c) Steven Easley, some rights reserved (CC BY-NC), uploaded by Steven Easley
- 65. (c) Gilles San Martin, some rights reserved (CC BY-SA), uploaded by Gilles San Martin
- 66. (c) Kjeld Brem, some rights reserved (CC BY-NC-ND), uploaded by Kjeld Brem
- 67. (c) Colin Ralston, some rights reserved (CC BY-NC), uploaded by Colin Ralston
- 68. (c) Rachel, some rights reserved (CC BY-NC-ND)
- 69. (c) Vijay Anand Ismavel, some rights reserved (CC BY-NC-SA)
- 70. (c) chengailim, some rights reserved (CC BY-NC), uploaded by chengailim
- 71. (c) Anne SORBES, some rights reserved (CC BY-NC-SA), uploaded by Anne SORBES
- 72. (c) Arthur de Jesús Chavarría Pérez, some rights reserved (CC BY), uploaded by Arthur de Jesús Chavarría Pérez
- 73. (c) joannerusso, some rights reserved (CC BY-NC), uploaded by joannerusso
- 74. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
- 75. (c) Tony Morris, some rights reserved (CC BY-NC)
- 76. (c) Carmelo López Abad, some rights reserved (CC BY-NC), uploaded by Carmelo López Abad
- 77. (c) Shipher (士緯) Wu (å³), some rights reserved (CC BY-NC-SA)
- 78. (c) Michael Price, some rights reserved (CC BY-NC-ND), uploaded by Michael Price
- 79. (c) Aaron Logan, some rights reserved (CC BY)
- 80. (c) Adam Bouderka, some rights reserved (CC BY-NC), uploaded by Adam Bouderka
- 81. (c) dittz, some rights reserved (CC BY-NC), uploaded by dittz
- 82. (c) Damon Tighe, some rights reserved (CC BY-NC), uploaded by Damon Tighe
- 83. (c) Diana-Terry Hibbitts, some rights reserved (CC BY-NC), uploaded by Diana-Terry Hibbitts
- 84. (c) Richard Coldiron, some rights reserved (CC BY-NC), uploaded by Richard Coldiron
- 85. (c) Dr Caesar Sengupta, some rights reserved (CC BY-NC), uploaded by Dr Caesar Sengupta
- 86. (c) Jorunn D. Newth, some rights reserved (CC BY-NC-SA)
- 87. (c) Joubert Heymans, some rights reserved (CC BY-NC-ND), uploaded by Joubert Heymans
- 88. (c) Jake Scott, all rights reserved, uploaded by Jake Scott
- 89. (c) Cheryl Harleston López Espino, some rights reserved (CC BY-NC-ND), uploaded by Cheryl Harleston López Espino