Edited by Sonia Alejandra Izabal Hernández, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Grigory Heaton, some rights reserved (CC BY-NC), uploaded by Grigory Heaton
- 2. (c) Ryan Jones, some rights reserved (CC BY-NC), uploaded by Ryan Jones
- 3. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 4. (c) Jason Headley, some rights reserved (CC BY-NC), uploaded by Jason Headley
- 5. (c) hudsonshooter, some rights reserved (CC BY-NC)
- 6. no rights reserved, uploaded by Kyle Nessen
- 7. (c) BJ Stacey, some rights reserved (CC BY-NC)
- 8. (c) Ad Konings, some rights reserved (CC BY-NC), uploaded by Ad Konings
- 9. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 10. (c) photogo, some rights reserved (CC BY-NC)
- 11. (c) Rupert Lees, some rights reserved (CC BY-NC), uploaded by Rupert Lees
- 12. (c) Manuel Raab, some rights reserved (CC BY-NC), uploaded by Manuel Raab
- 13. (c) Rafael Rodríguez Brito, some rights reserved (CC BY-NC), uploaded by Rafael Rodríguez Brito
- 14. (c) Stan Shebs, some rights reserved (CC BY-SA)
- 15. (c) Janai Southorth, some rights reserved (CC BY-NC-SA), uploaded by Janai Southorth
- 16. (c) Katja Schulz, some rights reserved (CC BY)
- 17. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 18. (c) Omar Del Toro, some rights reserved (CC BY-NC), uploaded by Omar Del Toro
- 19. (c) Daryll Marie, some rights reserved (CC BY-NC), uploaded by Daryll Marie
- 20. (c) Scott Buckel, some rights reserved (CC BY-NC), uploaded by Scott Buckel
- 21. (c) Jack Wolf, some rights reserved (CC BY-ND)
- 22. (c) Frans Vandewalle, some rights reserved (CC BY-NC)
- 23. (c) Squidpastry, some rights reserved (CC BY-NC), uploaded by Squidpastry
- 24. (c) Kevin Krebs, some rights reserved (CC BY-NC-SA)
- 25. (c) Tania Pérez Fiol, some rights reserved (CC BY-NC), uploaded by Tania Pérez Fiol
- 26. (c) Liz Osborn, some rights reserved (CC BY-NC), uploaded by Liz Osborn
- 27. (c) Ximo Galarza, some rights reserved (CC BY-NC-SA)
- 28. (c) Madeira Walking, some rights reserved (CC BY-NC-ND)