Edited by ygg_huur, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Andy Kraemer, some rights reserved (CC BY-NC)
- 2. (c) John Brush, some rights reserved (CC BY-NC)
- 3. (c) almostdanny, some rights reserved (CC BY-NC)
- 4. (c) Roberto R. Calderón, some rights reserved (CC BY-NC), uploaded by Roberto R. Calderón
- 5. (c) Dan Roach, some rights reserved (CC BY-NC), uploaded by Dan Roach
- 6. (c) Teresa Murr, some rights reserved (CC BY-NC), uploaded by Teresa Murr
- 7. (c) Peter Wilson, some rights reserved (CC BY-NC), uploaded by Peter Wilson
- 8. (c) Lise Peterson, some rights reserved (CC BY-NC), uploaded by Lise Peterson
- 9. (c) clconroy, some rights reserved (CC BY-NC), uploaded by clconroy
- 10. (c) Thomas Shahan, some rights reserved (CC BY-NC), uploaded by Thomas Shahan
- 11. (c) JJ Harrison, some rights reserved (CC BY-SA)
- 12. (c) Mignoffo, some rights reserved (CC BY-NC), uploaded by Mignoffo
- 13. (c) Brooke Smith, some rights reserved (CC BY), uploaded by Brooke Smith
- 14. (c) e0n_, some rights reserved (CC BY-NC), uploaded by e0n_
- 15. (c) Jaxon Rickel, some rights reserved (CC BY), uploaded by Jaxon Rickel
- 16. (c) lucio101, some rights reserved (CC BY-NC)
- 17. (c) Suzette Rogers, some rights reserved (CC BY-NC), uploaded by Suzette Rogers
- 18. (c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas Goldman
- 19. (c) Gravitywave, some rights reserved (CC BY-NC-SA)
- 20. (c) José Belem Hernández Díaz, some rights reserved (CC BY), uploaded by José Belem Hernández Díaz
- 21. (c) George F Mayfield, some rights reserved (CC BY-SA)
- 22. (c) Ad Konings, some rights reserved (CC BY-NC), uploaded by Ad Konings
- 23. (c) Flickr, some rights reserved (CC BY-NC)
- 24. (c) Bryan, some rights reserved (CC BY-NC), uploaded by Bryan
- 25. (c) Mark Fishbein, some rights reserved (CC BY-NC), uploaded by Mark Fishbein
- 26. (c) bradleysmith, some rights reserved (CC BY-NC)
- 27. (c) plectrudis, some rights reserved (CC BY-NC), uploaded by plectrudis
- 28. (c) Alison Northup, some rights reserved (CC BY), uploaded by Alison Northup
- 29. (c) Independencia, some rights reserved (CC BY-NC), uploaded by Independencia
- 30. (c) WATANABE Hitoshi 渡辺仁, some rights reserved (CC BY), uploaded by WATANABE Hitoshi 渡辺仁
- 31. (c) smccreadie, some rights reserved (CC BY-NC)
- 32. (c) Ryan McDaniel, some rights reserved (CC BY-NC), uploaded by Ryan McDaniel
- 33. (c) sonnia hill, some rights reserved (CC BY)
- 34. (c) canyonbill, some rights reserved (CC BY-NC), uploaded by canyonbill
- 35. (c) Daniel Folds, some rights reserved (CC BY-NC), uploaded by Daniel Folds
- 36. (c) Nicholas Cowey, some rights reserved (CC BY-NC), uploaded by Nicholas Cowey
- 37. (c) tim_mathewson, some rights reserved (CC BY-NC)
- 38. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 39. (c) Boobook48, some rights reserved (CC BY-NC-SA)
- 40. (c) hgarris, some rights reserved (CC BY-NC), uploaded by hgarris
- 41. (c) Kenneth Bader, some rights reserved (CC BY-NC), uploaded by Kenneth Bader
- 42. (c) Daniel Donovan, some rights reserved (CC BY-NC), uploaded by Daniel Donovan
- 43. (c) cpickens, some rights reserved (CC BY-NC)
- 44. (c) Victor Engel, some rights reserved (CC BY), uploaded by Victor Engel
- 45. (c) Juan Carlos López Domínguez, some rights reserved (CC BY-NC), uploaded by Juan Carlos López Domínguez