Edited by Ian Taylor, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) andriy, some rights reserved (CC BY-NC), uploaded by andriy
- 2. (c) Derek Bakken, some rights reserved (CC BY)
- 3. (c) Glen Peterson, some rights reserved (CC BY-NC-SA)
- 4. (c) Jen Goellnitz, some rights reserved (CC BY-NC-ND)
- 5. (c) Eric Heupel, some rights reserved (CC BY-NC)
- 6. (c) sean.cuill, some rights reserved (CC BY)
- 7. (c) Steve Daniels, some rights reserved (CC BY-NC), uploaded by Steve Daniels
- 8. (c) Andy Jones, some rights reserved (CC BY-NC)
- 9. (c) Mdf, some rights reserved (CC BY-SA)
- 10. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 11. (c) Ralf Nowak, some rights reserved (CC BY-NC-SA)
- 12. (c) Michael D Fox, some rights reserved (CC BY), uploaded by Michael D Fox
- 13. (c) Kenneth Cole Schneider, some rights reserved (CC BY-NC-SA)
- 14. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 15. (c) Jeremy Meyer, some rights reserved (CC BY)
- 16. (c) Vitaliy Khustochka, some rights reserved (CC BY-NC)
- 17. (c) Mike H, some rights reserved (CC BY-NC), uploaded by Mike H
- 18. (c) Joanne Redwood, some rights reserved (CC BY-NC), uploaded by Joanne Redwood
- 19. (c) Eric Isley, some rights reserved (CC BY-NC), uploaded by Eric Isley
- 20. (c) Maris Pukitis, some rights reserved (CC BY-NC-SA)
- 21. (c) Anita Gould, some rights reserved (CC BY-NC)
- 22. (c) Henry T. McLin, some rights reserved (CC BY-NC-ND)
- 23. (c) Sergey Yeliseev, some rights reserved (CC BY-NC-ND)
- 24. (c) Robin Horn, some rights reserved (CC BY-NC-ND)
- 25. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 26. (c) Michael, some rights reserved (CC BY-NC-SA)
- 27. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
- 28. (c) Pedro Alanis, some rights reserved (CC BY-NC), uploaded by Pedro Alanis
- 29. (c) peterichman, some rights reserved (CC BY)
- 30. (c) Rick Leche - Photography, some rights reserved (CC BY-NC-ND)
- 31. (c) Minette Layne, some rights reserved (CC BY-SA)
- 32. (c) Dakota Duff, some rights reserved (CC BY-NC), uploaded by Dakota Duff
- 33. (c) Bill Carrell, some rights reserved (CC BY-NC-ND), uploaded by Bill Carrell
- 34. (c) Jamie Chavez, some rights reserved (CC BY-NC)
- 35. (c) Kakalotli, some rights reserved (CC BY-NC), uploaded by Kakalotli
- 36. (c) Lip Kee Yap, some rights reserved (CC BY-SA)
- 37. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 38. (c) Tom Benson, some rights reserved (CC BY-NC-ND)
- 39. (c) patricia pierce, some rights reserved (CC BY)
- 40. (c) Ned Haight, some rights reserved (CC BY-NC-ND)
- 41. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 42. (c) Cullen Hanks, some rights reserved (CC BY-NC), uploaded by Cullen Hanks
- 43. (c) Jean-Guy Dallaire, some rights reserved (CC BY-NC-ND)
- 44. (c) Becky Gregory, some rights reserved (CC BY-ND)
- 45. (c) Mike Leveille, some rights reserved (CC BY-NC), uploaded by Mike Leveille
- 46. (c) rbbrummitt, some rights reserved (CC BY-NC), uploaded by rbbrummitt
- 47. (c) dloarie, some rights reserved (CC BY), uploaded by dloarie
- 48. (c) Trisha Shears, some rights reserved (CC BY-SA)
- 49. (c) nigel, some rights reserved (CC BY)
- 50. (c) Joseph D Kurtz, some rights reserved (CC BY-NC), uploaded by Joseph D Kurtz
- 51. (c) Rick Leche, some rights reserved (CC BY-NC-ND)
- 52. (c) Jerry Oldenettel, some rights reserved (CC BY-SA)
- 53. (c) Jenn Megyesi, some rights reserved (CC BY-NC), uploaded by Jenn Megyesi
- 54. (c) Kelly Colgan Azar, some rights reserved (CC BY-ND)
- 55. (c) Rafy Rodriguez, some rights reserved (CC BY-NC-SA)
- 56. (c) BJ Stacey, some rights reserved (CC BY-NC)
