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Photo Credits
- 1. (c) L S, some rights reserved (CC BY-NC)
- 2. (c) Annelie Burghause, some rights reserved (CC BY-NC-SA)
- 3. (c) wanderflechten, some rights reserved (CC BY-NC-ND)
- 4. (c) Christian, some rights reserved (CC BY-NC-ND)
- 5. (c) rf_bennett, some rights reserved (CC BY-NC-ND)
- 6. (c) tom_carlberg, some rights reserved (CC BY-NC), uploaded by tom_carlberg
- 7. (c) Jason Hollinger, some rights reserved (CC BY-SA)
- 8. (c) Richard Droker, some rights reserved (CC BY-NC-ND)
- 9. (c) Christophe Quintin, some rights reserved (CC BY-NC)
- 10. (c) Jason Hollinger, some rights reserved (CC BY)
- 11. (c) Josh*m, some rights reserved (CC BY-NC-SA)
- 12. (c) Katya, some rights reserved (CC BY), uploaded by Katya
- 13. (c) Anita, some rights reserved (CC BY-NC-SA)
- 14. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA)
- 15. (c) nz_willowherb, some rights reserved (CC BY-NC)
- 16. (c) André Aptroot, some rights reserved (CC BY-NC-SA)
- 17. (c) Tatiana Bulyonkova, some rights reserved (CC BY-NC-SA)
- 18. (c) Bob Danley, some rights reserved (CC BY-SA)
- 19. (c) Ed Uebel, some rights reserved (CC BY-SA)
- 20. (c) Ron Pastorino, some rights reserved (CC BY-SA)
- 21. (c) Joe Walewski, some rights reserved (CC BY-NC), uploaded by Joe Walewski
- 22. (c) Kok van Herk, some rights reserved (CC BY-NC-SA)
- 23. (c) Andrew K., some rights reserved (CC BY-NC-SA)
- 24. (c) cjlewis, some rights reserved (CC BY-NC), uploaded by cjlewis
- 25. (c) Lynette, some rights reserved (CC BY-NC)
- 26. (c) Václav Hanzlík, some rights reserved (CC BY-NC)
- 27. (c) Ken-ichi Ueda, some rights reserved (CC BY)