Edited by Luke, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Charlotte Bill, some rights reserved (CC BY-NC), uploaded by Charlotte Bill
- 2. (c) Kent C. Jensen, some rights reserved (CC BY-NC), uploaded by Kent C. Jensen
- 3. (c) Tim Harding, some rights reserved (CC BY-NC-ND)
- 4. (c) Jerry A. Payne, some rights reserved (CC BY)
- 5. (c) Josh Vandermeulen, some rights reserved (CC BY-NC-ND), uploaded by Josh Vandermeulen
- 6. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 7. (c) Joseph D Kurtz, some rights reserved (CC BY-NC), uploaded by Joseph D Kurtz
- 8. (c) Steve Thompson, some rights reserved (CC BY-NC-SA)
- 9. (c) Tom Murray, some rights reserved (CC BY-NC)
- 10. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 11. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 12. (c) Gareth Rasberry, some rights reserved (CC BY-SA)
- 13. (c) guyincognito, some rights reserved (CC BY-NC), uploaded by guyincognito
- 14. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 15. (c) John Murnane, some rights reserved (CC BY-NC), uploaded by John Murnane
- 16. (c) Richard Chamberlain, some rights reserved (CC BY-NC), uploaded by Richard Chamberlain
- 17. (c) jayras, some rights reserved (CC BY-NC), uploaded by jayras
- 18. (c) Jamie Chavez, some rights reserved (CC BY-NC)
- 19. (c) Sergey Pisarevskiy, some rights reserved (CC BY-NC-SA)
- 20. (c) Noah Frade, some rights reserved (CC BY-NC-ND), uploaded by Noah Frade
- 21. (c) Blake Matheson, some rights reserved (CC BY-NC)
- 22. (c) Fyn Kynd, some rights reserved (CC BY-SA), uploaded by Fyn Kynd
- 23. (c) Dave Govoni, some rights reserved (CC BY-NC-SA)
- 24. (c) Laura Gooch, some rights reserved (CC BY-NC-SA)
- 25. (c) Richard Griffin, some rights reserved (CC BY-NC-SA)
- 26. (c) Bill Carrell, some rights reserved (CC BY-NC-ND), uploaded by Bill Carrell
- 27. (c) Mdf, some rights reserved (CC BY-SA)
- 28. (c) Rick Leche, some rights reserved (CC BY-NC-ND)
- 29. (c) vladimir_m, some rights reserved (CC BY-NC), uploaded by vladimir_m
- 30. (c) Jim Johnson, some rights reserved (CC BY-NC-ND), uploaded by Jim Johnson
- 31. (c) Jean-Guy Dallaire, some rights reserved (CC BY-NC-ND)
- 32. (c) gbudyk, some rights reserved (CC BY-NC-ND), uploaded by gbudyk
- 33. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 34. (c) Becky Matsubara, some rights reserved (CC BY)
- 35. (c) JoAnne-Russo, some rights reserved (CC BY-NC)
- 36. (c) Ad Konings, some rights reserved (CC BY-NC), uploaded by Ad Konings
- 37. (c) Russ Hoverman, some rights reserved (CC BY-NC), uploaded by Russ Hoverman
- 38. (c) Stephen Taylor, some rights reserved (CC BY-NC), uploaded by Stephen Taylor
- 39. (c) Oscar Johnson, some rights reserved (CC BY-NC-ND), uploaded by Oscar Johnson
- 40. (c) BJ Stacey, some rights reserved (CC BY-NC)
- 41. (c) Ximo Galarza, some rights reserved (CC BY-NC-SA)
- 42. (c) Bonnie Kinder, some rights reserved (CC BY-NC), uploaded by Bonnie Kinder
- 43. (c) Erika Mitchell, some rights reserved (CC BY-NC), uploaded by Erika Mitchell
- 44. (c) skitterbug, some rights reserved (CC BY), uploaded by skitterbug
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- 46. (c) JanetandPhil, some rights reserved (CC BY-NC-ND)
- 47. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 48. (c) Mark Conboy, some rights reserved (CC BY-NC), uploaded by Mark Conboy
- 49. (c) Victor W Fazio III, some rights reserved (CC BY-NC-ND), uploaded by Victor W Fazio III
- 50. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 51. (c) Annika Lindqvist, some rights reserved (CC BY), uploaded by Annika Lindqvist
- 52. (c) lizlovesnature, some rights reserved (CC BY-NC-ND), uploaded by lizlovesnature
- 53. (c) Mark Dennis, some rights reserved (CC BY-NC), uploaded by Mark Dennis
- 54. (c) David Monroy R, some rights reserved (CC BY-NC), uploaded by David Monroy R
- 55. (c) David M. Gascoigne, some rights reserved (CC BY-NC), uploaded by David M. Gascoigne
- 56. (c) Martin Hall, some rights reserved (CC BY-NC), uploaded by Martin Hall
- 57. (c) Maggie.Smith, some rights reserved (CC BY-NC)
- 58. (c) Dario Sanches, some rights reserved (CC BY-SA)
