Edited by Francis Reyes, Andreina Valdez-Trinidad, and Ana Carolina Hernández-Oquet, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Dave Govoni, some rights reserved (CC BY-NC-SA), uploaded by Dave Govoni
- 2. (c) Mike Baird, some rights reserved (CC BY)
- 3. (c) Len Blumin, some rights reserved (CC BY)
- 4. (c) Cláudio Dias Timm, some rights reserved (CC BY-NC-SA)
- 5. (c) Ferran Pestaña, some rights reserved (CC BY-NC)
- 6. (c) Jack Wolf, some rights reserved (CC BY-ND)
- 7. (c) barloventomagico, some rights reserved (CC BY-NC-ND)
- 8. (c) Lip Kee Yap, some rights reserved (CC BY-SA)
- 9. (c) Mike Powers, some rights reserved (CC BY-NC-SA)
- 10. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 11. (c) Blake Matheson, some rights reserved (CC BY-NC)
- 12. (c) Melissa McMasters, some rights reserved (CC BY)
- 13. (c) Taran Rampersad, some rights reserved (CC BY-NC-SA)
- 14. (c) Ron Savage, some rights reserved (CC BY-NC-SA), uploaded by Ron Savage
- 15. (c) Rick Leche - Photography, some rights reserved (CC BY-NC-ND)
- 16. (c) jim gifford, some rights reserved (CC BY-SA)
- 17. (c) Postdlf, some rights reserved (CC BY-SA)
- 18. (c) Isidro Vila Verde, some rights reserved (CC BY-NC)
- 19. (c) Andy Jones, some rights reserved (CC BY-NC-SA)
- 20. (c) Jon. D. Anderson, some rights reserved (CC BY-NC-ND)
- 21. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 22. (c) Rafy Rodriguez, some rights reserved (CC BY-NC-SA)
- 23. (c) Allan Hopkins, some rights reserved (CC BY-NC-ND)
- 24. (c) YamezA, some rights reserved (CC BY-NC-ND)
- 25. (c) Jeff Nickel, some rights reserved (CC BY-NC-SA)
- 26. (c) Drew Avery, some rights reserved (CC BY), uploaded by Drew Avery
- 27. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 28. (c) Paul van de Velde, some rights reserved (CC BY)
- 29. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 30. (c) 116916927065934112165, some rights reserved (CC BY), uploaded by 116916927065934112165
- 31. (c) Nick Chill, some rights reserved (CC BY-NC-SA)
- 32. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 33. (c) Pablo Caceres Contreras, some rights reserved (CC BY-NC-ND)
- 34. (c) Jorge Montejo, some rights reserved (CC BY-NC-SA)
- 35. (c) Mark Kilner, some rights reserved (CC BY-NC-SA)
- 36. (c) cotinis, some rights reserved (CC BY-NC-SA)
- 37. (c) Marcel Holyoak, some rights reserved (CC BY-NC-ND)
- 38. (c) Allan Harris, some rights reserved (CC BY-ND)
- 39. (c) kansasphoto, some rights reserved (CC BY)
- 40. (c) ConstantineD, some rights reserved (CC BY-NC-ND)
- 41. (c) James Steamer, some rights reserved (CC BY-NC), uploaded by James Steamer
- 42. (c) Gary Ashley, some rights reserved (CC BY-NC)
- 43. (c) Lip Kee, some rights reserved (CC BY-SA)
- 44. (c) Fen Oswin, some rights reserved (CC BY-NC-ND)
- 45. (c) Tom McC., some rights reserved (CC BY-NC-ND)
- 46. (c) Maggie.Smith, some rights reserved (CC BY-NC)
- 47. (c) Juan Jose Montero Rodriguez, some rights reserved (CC BY-NC-SA)
- 48. (c) Eric de Leeuw, some rights reserved (CC BY-NC-ND)
- 49. (c) Raj Boora, some rights reserved (CC BY)
- 50. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 51. (c) David Baron, some rights reserved (CC BY-SA)
- 52. (c) Steve Berardi, some rights reserved (CC BY-SA)
- 53. (c) Stewart Ho, some rights reserved (CC BY-NC-ND)
- 54. (c) Bob, some rights reserved (CC BY-NC-ND)
- 55. (c) Doug Greenberg, some rights reserved (CC BY-NC-ND)
- 56. (c) Geoff Coe, some rights reserved (CC BY-NC-ND)
- 57. (c) Shenghung Lin, some rights reserved (CC BY-NC-ND)
- 58. (c) Wayne, some rights reserved (CC BY-NC)
- 59. (c) Robert, some rights reserved (CC BY-NC)
- 60. (c) Henry T. McLin, some rights reserved (CC BY-NC-ND)
- 61. (c) David Allen, some rights reserved (CC BY-NC-SA)
- 62. (c) BJ Stacey, some rights reserved (CC BY-NC)
- 63. (c) Ron Knight, some rights reserved (CC BY)
- 64. (c) sarbhloh, some rights reserved (CC BY-NC-ND)
- 65. (c) Dominic Sherony, some rights reserved (CC BY-SA)
- 66. (c) Jim McCulloch, some rights reserved (CC BY)
- 67. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 68. (c) Don Faulkner, some rights reserved (CC BY-SA)
- 69. (c) Dick Daniels, some rights reserved (CC BY-SA)
- 70. (c) Jamie Chavez, some rights reserved (CC BY-NC)
- 71. (c) Rick Leche, some rights reserved (CC BY-NC)