Edited by Catherine C. Galley, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Matthew Drollinger, some rights reserved (CC BY-NC), uploaded by Matthew Drollinger
- 2. (c) ellen hildebrandt, some rights reserved (CC BY-NC), uploaded by ellen hildebrandt
- 3. (c) Royal Tyler, some rights reserved (CC BY-NC-SA), uploaded by Royal Tyler
- 4. (c) Annika Lindqvist, some rights reserved (CC BY), uploaded by Annika Lindqvist
- 5. (c) Kai Joaquin, some rights reserved (CC BY-NC), uploaded by Kai Joaquin
- 6. (c) Nathan Taylor, some rights reserved (CC BY-NC), uploaded by Nathan Taylor
- 7. (c) Linda Jo Conn, some rights reserved (CC BY-NC), uploaded by Linda Jo Conn
- 8. (c) Don Loarie, some rights reserved (CC BY)
- 9. (c) Robby Deans, some rights reserved (CC BY-NC), uploaded by Robby Deans
- 10. (c) Tom Horton, some rights reserved (CC BY-NC), uploaded by Tom Horton
- 11. (c) Shamil Murtazin, some rights reserved (CC BY-NC), uploaded by Shamil Murtazin
- 12. (c) Mike Quinn, Austin, TX, some rights reserved (CC BY-NC), uploaded by Mike Quinn, Austin, TX
- 13. (c) Michael Price, some rights reserved (CC BY-NC-ND), uploaded by Michael Price
- 14. (c) Jim des Rivieres, some rights reserved (CC BY-NC), uploaded by Jim des Rivieres
- 15. (c) Katja Schulz, some rights reserved (CC BY)
- 16. (c) Jim Brighton, some rights reserved (CC BY-NC), uploaded by Jim Brighton
- 17. (c) Jenn Forman Orth, some rights reserved (CC BY-NC-SA)
- 18. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 19. (c) Chuck Sexton, some rights reserved (CC BY-NC), uploaded by Chuck Sexton
- 20. (c) Philippe Blais, some rights reserved (CC BY-NC-ND), uploaded by Philippe Blais
- 21. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
- 22. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 23. (c) Owen Strickland, some rights reserved (CC BY-NC), uploaded by Owen Strickland
- 24. (c) Lee Hoy, some rights reserved (CC BY-NC-ND), uploaded by Lee Hoy
- 25. (c) dleaon1, some rights reserved (CC BY-NC), uploaded by dleaon1
- 26. (c) Meghan Cassidy, some rights reserved (CC BY-SA), uploaded by Meghan Cassidy
- 27. (c) C. Mallory, some rights reserved (CC BY-NC), uploaded by C. Mallory
- 28. (c) Aaron Lincoln, some rights reserved (CC BY-NC), uploaded by Aaron Lincoln
- 29. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 30. (c) Lauren Magner, some rights reserved (CC BY-NC), uploaded by Lauren Magner
- 31. (c) Simon Oliver, some rights reserved (CC BY-NC), uploaded by Simon Oliver
- 32. (c) Russell Pfau, some rights reserved (CC BY-NC), uploaded by Russell Pfau
- 33. (c) Catherine C. Galley, some rights reserved (CC BY-NC), uploaded by Catherine C. Galley
- 34. (c) Zach DuFran, some rights reserved (CC BY-NC), uploaded by Zach DuFran
- 35. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
- 36. (c) Ed Miller, some rights reserved (CC BY-NC), uploaded by Ed Miller
- 37. (c) Curtis Eckerman, some rights reserved (CC BY-NC), uploaded by Curtis Eckerman
- 38. no rights reserved, uploaded by Jesse Rorabaugh
- 39. (c) K Schneider, some rights reserved (CC BY-NC)
- 40. (c) Bob O'Kennon, some rights reserved (CC BY-NC), uploaded by Bob O'Kennon
- 41. (c) Andy Reago & Chrissy McClarren, some rights reserved (CC BY)
- 42. (c) saipelcsa, some rights reserved (CC BY-NC), uploaded by saipelcsa
- 43. (c) Ilona Loser, some rights reserved (CC BY-NC-SA)
- 44. (c) Jonathan (JC) Carpenter, some rights reserved (CC BY-NC), uploaded by Jonathan (JC) Carpenter
- 45. (c) Annika Lindqvist, some rights reserved (CC BY)
- 46. (c) Mark Rosenstein, some rights reserved (CC BY-NC-SA), uploaded by Mark Rosenstein
- 47. (c) Morgan Hay, some rights reserved (CC BY), uploaded by Morgan Hay
- 48. (c) David, some rights reserved (CC BY-NC-SA), uploaded by David
- 49. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 50. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 51. (c) Melissa McMasters, some rights reserved (CC BY)
- 52. (c) Lena Zappia, some rights reserved (CC BY-NC), uploaded by Lena Zappia
- 53. (c) griff, some rights reserved (CC BY-NC), uploaded by griff
- 54. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 55. (c) Carolyn Gritzmaker, some rights reserved (CC BY-NC), uploaded by Carolyn Gritzmaker
- 56. (c) Scott E Severs, some rights reserved (CC BY-NC), uploaded by Scott E Severs
- 57. (c) BJ Stacey, some rights reserved (CC BY-NC), uploaded by BJ Stacey
- 58. (c) David G. Barker, some rights reserved (CC BY-NC), uploaded by David G. Barker
- 59. (c) Laura Gaudette, some rights reserved (CC BY), uploaded by Laura Gaudette
- 60. (c) gbrucks, some rights reserved (CC BY-NC), uploaded by gbrucks
- 61. (c) J. N. Stuart, some rights reserved (CC BY-NC-ND)
- 62. no rights reserved, uploaded by Chrissy McClarren and Andy Reago
- 63. (c) Kent C. Jensen, some rights reserved (CC BY-NC), uploaded by Kent C. Jensen
