Edited by Marie Studer, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Ryan Somma, some rights reserved (CC BY-SA)
- 2. (c) copepodo, some rights reserved (CC BY-NC-ND)
- 3. (c) sphaerichthys, some rights reserved (CC BY-NC)
- 4. (c) tom spinker, some rights reserved (CC BY-NC-ND)
- 5. (c) Jason Means, some rights reserved (CC BY-NC-ND)
- 6. (c) Rich McGervey, some rights reserved (CC BY-NC-SA)
- 7. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 8. (c) Vicki's Nature, some rights reserved (CC BY-NC-ND)
- 9. (c) Josh More, some rights reserved (CC BY-NC-ND)
- 10. (c) dougmino, some rights reserved (CC BY-NC-SA)
- 11. (c) Kim Cabrera, some rights reserved (CC BY-NC-ND), uploaded by Kim Cabrera
- 12. (c) Jason Sharp, all rights reserved, uploaded by Jason Sharp
- 13. (c) David Friel, some rights reserved (CC BY)
- 14. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 15. (c) Lip Kee Yap, some rights reserved (CC BY-SA)
- 16. (c) Ronnie Pitman, some rights reserved (CC BY-NC)
- 17. (c) Gavan Watson, some rights reserved (CC BY-NC-ND)
- 18. (c) Becky Gregory, some rights reserved (CC BY-ND)
- 19. (c) GregTheBusker, some rights reserved (CC BY)
- 20. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 21. (c) Scott Young, some rights reserved (CC BY-NC)
- 22. (c) Laura Gooch, some rights reserved (CC BY-NC-SA)
- 23. (c) Josh Henderson, some rights reserved (CC BY-SA)
- 24. (c) Nick Chill, some rights reserved (CC BY-NC-SA)
- 25. (c) Zack, some rights reserved (CC BY-NC-SA)
- 26. (c) Todd Pierson, some rights reserved (CC BY-NC-SA)
- 27. (c) Bob Richmond, some rights reserved (CC BY)
- 28. (c) Eric Osmundson, some rights reserved (CC BY-NC-SA)
- 29. (c) J. Martin, some rights reserved (CC BY-NC)
- 30. (c) KENPEI, some rights reserved (CC BY-SA)
- 31. (c) manual crank, some rights reserved (CC BY-NC-SA)
