Edited by Caleb Scholtens, some rights reserved (CC0)
Photo Credits
- 1. (c) S. Rae, some rights reserved (CC BY)
- 2. (c) Stuart Tingley, some rights reserved (CC BY-NC), uploaded by Stuart Tingley
- 3. no rights reserved, uploaded by Jesse Rorabaugh
- 4. (c) C. Mallory, some rights reserved (CC BY-NC), uploaded by C. Mallory
- 5. (c) Denis Doucet, some rights reserved (CC BY-NC), uploaded by Denis Doucet
- 6. (c) Will Stuart, some rights reserved (CC BY-NC), uploaded by Will Stuart
- 7. (c) Judy Gallagher, some rights reserved (CC BY)
- 8. (c) thesnaguy, some rights reserved (CC BY-NC-SA), uploaded by thesnaguy
- 9. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 10. (c) Lee Elliott, some rights reserved (CC BY-NC-SA), uploaded by Lee Elliott
- 11. (c) cotinis, some rights reserved (CC BY-NC-SA)
- 12. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 13. (c) Emily Hjalmarson, some rights reserved (CC BY-NC), uploaded by Emily Hjalmarson
- 14. (c) Jimmy Dee, some rights reserved (CC BY-SA), uploaded by Jimmy Dee
- 15. (c) Steve Wells, some rights reserved (CC BY-NC), uploaded by Steve Wells
- 16. (c) Judy Gallagher, some rights reserved (CC BY), uploaded by Judy Gallagher
- 17. (c) Paul Bedell, some rights reserved (CC BY-SA), uploaded by Paul Bedell
- 18. (c) Martin R. Lucas, some rights reserved (CC BY-NC), uploaded by Martin R. Lucas
- 19. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 20. (c) Andrew Simon, some rights reserved (CC BY-NC), uploaded by Andrew Simon
- 21. (c) Michael Kauffmann, some rights reserved (CC BY-ND), uploaded by Michael Kauffmann
- 22. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 23. (c) Fyn Kynd, some rights reserved (CC BY-SA), uploaded by Fyn Kynd
- 24. (c) Katja Schulz, some rights reserved (CC BY)
- 25. (c) Don Sutherland, some rights reserved (CC BY-NC), uploaded by Don Sutherland
- 26. (c) Tracey Fandre, some rights reserved (CC BY-NC-ND), uploaded by Tracey Fandre
- 27. (c) Eric Knopf, some rights reserved (CC BY-NC), uploaded by Eric Knopf
- 28. (c) psweet, some rights reserved (CC BY-SA), uploaded by psweet
- 29. (c) Tanya Taylor, some rights reserved (CC BY-NC), uploaded by Tanya Taylor
- 30. (c) Karen Yukich, some rights reserved (CC BY-NC), uploaded by Karen Yukich
- 31. (c) Jeffrey H. Skevington, some rights reserved (CC BY-NC), uploaded by Jeffrey H. Skevington
- 32. (c) Mark Nenadov, some rights reserved (CC BY-NC), uploaded by Mark Nenadov
- 33. (c) mmaymi, some rights reserved (CC BY-NC), uploaded by mmaymi
- 34. (c) Joe MDO, some rights reserved (CC BY-NC), uploaded by Joe MDO
- 35. (c) Donají Graham, some rights reserved (CC BY-NC), uploaded by Donají Graham
- 36. (c) Bill Carrell, some rights reserved (CC BY-NC-ND), uploaded by Bill Carrell
- 37. (c) cotinis, some rights reserved (CC BY-NC), uploaded by cotinis
- 38. (c) Wayne Fidler, some rights reserved (CC BY-NC), uploaded by Wayne Fidler
- 39. (c) M. Goff, some rights reserved (CC BY-NC-SA), uploaded by M. Goff
- 40. (c) Sharleen, some rights reserved (CC BY-NC), uploaded by Sharleen
- 41. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
- 42. (c) taharms48, some rights reserved (CC BY-NC), uploaded by taharms48
