Edited by Cesar Raziel Lucio Palacio, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Héctor, some rights reserved (CC BY-NC), uploaded by Héctor
- 2. (c) Laura Gaudette, some rights reserved (CC BY), uploaded by Laura Gaudette
- 3. (c) Bob Peterson, some rights reserved (CC BY)
- 4. (c) portioid, some rights reserved (CC BY-SA), uploaded by portioid
- 5. (c) Biopix, some rights reserved (CC BY-NC)
- 6. (c) Jaico Caballero, some rights reserved (CC BY-NC), uploaded by Jaico Caballero
- 7. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 8. (c) djfrantic, some rights reserved (CC BY-NC-ND)
- 9. (c) Pascal Gaudette, some rights reserved (CC BY-NC-SA)
- 10. (c) Cheng-Tao Lin, some rights reserved (CC BY), uploaded by Cheng-Tao Lin
- 11. (c) Cheryl Harleston López Espino, some rights reserved (CC BY-NC-ND), uploaded by Cheryl Harleston López Espino
- 12. (c) Katja Schulz, some rights reserved (CC BY)
- 13. (c) Juan Cruzado Cortés, some rights reserved (CC BY-SA), uploaded by Juan Cruzado Cortés
- 14. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 15. (c) Ian Morton, some rights reserved (CC BY-NC-SA)
- 16. (c) Daniela T. Candia-Ramírez, some rights reserved (CC BY-NC), uploaded by Daniela T. Candia-Ramírez
- 17. (c) Annika Lindqvist, some rights reserved (CC BY), uploaded by Annika Lindqvist
- 18. (c) David Hill, some rights reserved (CC BY)
- 19. (c) Felix Fleck, some rights reserved (CC BY-NC), uploaded by Felix Fleck
- 20. (c) Cletus Lee, some rights reserved (CC BY-NC-ND)
- 21. (c) Leticia, some rights reserved (CC BY-NC), uploaded by Leticia
- 22. (c) Bill & Mark Bell, some rights reserved (CC BY-NC-SA)
- 23. (c) Mike Lusk, some rights reserved (CC BY-NC), uploaded by Mike Lusk
- 24. (c) Fátima Tec, some rights reserved (CC BY-NC), uploaded by Fátima Tec
- 25. (c) Michael Schmidt, some rights reserved (CC BY-NC-SA)
- 26. (c) Meghan Cassidy, some rights reserved (CC BY-SA), uploaded by Meghan Cassidy
- 27. (c) Keir Morse, some rights reserved (CC BY-NC-ND), uploaded by Keir Morse
- 28. (c) Obed Palagot Echavarria, some rights reserved (CC BY-SA), uploaded by Obed Palagot Echavarria
- 29. no rights reserved, uploaded by Jesse Rorabaugh
- 30. (c) tomvansichem, some rights reserved (CC BY-NC)
- 31. (c) Marcello Consolo, some rights reserved (CC BY-NC-SA)
- 32. (c) Benny Mazur, some rights reserved (CC BY)
- 33. (c) Burkhard, some rights reserved (CC BY-NC-SA), uploaded by Burkhard
- 34. (c) Zach Hawn, some rights reserved (CC BY-NC-SA)
- 35. (c) Nikolai Vladimirov, some rights reserved (CC BY-NC), uploaded by Nikolai Vladimirov
- 36. (c) Bodor family, some rights reserved (CC BY-NC), uploaded by Bodor family
- 37. (c) Mike Bowie, some rights reserved (CC BY), uploaded by Mike Bowie
- 38. (c) Bernard DUPONT, some rights reserved (CC BY-SA)
- 39. (c) stonebird, some rights reserved (CC BY-NC-SA)
- 40. (c) Lara Gibson, some rights reserved (CC BY), uploaded by Lara Gibson
- 41. (c) dlbowls, some rights reserved (CC BY-NC), uploaded by dlbowls
- 42. (c) Gathadair, some rights reserved (CC BY-NC)
- 43. (c) Eduardo Axel Recillas Bautista, some rights reserved (CC BY-NC), uploaded by Eduardo Axel Recillas Bautista
- 44. (c) Alexandre S. Michelotto, some rights reserved (CC BY-SA), uploaded by Alexandre S. Michelotto
- 45. (c) Judy Gallagher, some rights reserved (CC BY)
- 46. (c) Stanislav Krejčík, some rights reserved (CC BY)
- 47. (c) Ken Schneider, some rights reserved (CC BY-NC), uploaded by Ken Schneider
- 48. (c) Antonio SG, some rights reserved (CC BY-NC), uploaded by Antonio SG
