Edited by Christopher Casillas, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Alex Heyman, some rights reserved (CC BY-NC), uploaded by Alex Heyman
- 2. (c) NatureShutterbug, some rights reserved (CC BY)
- 3. (c) Steve Matson, some rights reserved (CC BY-NC), uploaded by Steve Matson
- 4. (c) c michael hogan, some rights reserved (CC BY-NC-SA), uploaded by c michael hogan
- 5. (c) Franco Folini, some rights reserved (CC BY-SA)
- 6. (c) atflory, some rights reserved (CC BY-NC)
- 7. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 8. (c) bobkeeran, some rights reserved (CC BY-NC)
- 9. (c) Diane Etchison, some rights reserved (CC BY-NC), uploaded by Diane Etchison
- 10. (c) randomtruth, some rights reserved (CC BY-NC-SA)
- 11. (c) dlbowls, some rights reserved (CC BY-NC), uploaded by dlbowls
- 12. (c) user:Curtis Clark, some rights reserved (CC BY-SA)
- 13. (c) hovie, some rights reserved (CC BY-NC)
- 14. (c) George F Mayfield, some rights reserved (CC BY-SA)
- 15. (c) Jason Hollinger, some rights reserved (CC BY-SA)
- 16. (c) Kyle Brine, some rights reserved (CC BY-NC), uploaded by Kyle Brine
- 17. (c) nstassinopoulos, some rights reserved (CC BY-NC)
- 18. (c) Paolo Mazzei, some rights reserved (CC BY-NC), uploaded by Paolo Mazzei
- 19. no rights reserved, uploaded by Jesse Rorabaugh
- 20. (c) berlinflower, some rights reserved (CC BY-NC)
- 21. (c) Forest and Kim Starr, some rights reserved (CC BY)