Edited by Nathaniel Wise, Emily Hayne, geozuf, ejgnam2, Margaret Butler, forbirdk, and elevapotter, some rights reserved (CC0)
Photo Credits
- 1. (c) Mark Peck, some rights reserved (CC BY-NC-SA)
- 2. (c) Gavan Watson, some rights reserved (CC BY-NC-SA)
- 3. (c) Scott Young, some rights reserved (CC BY-NC)
- 4. (c) Rick Leche, some rights reserved (CC BY-NC-ND)
- 5. (c) Bonnie Kinder, some rights reserved (CC BY-NC), uploaded by Bonnie Kinder
- 6. (c) brendan.lally, some rights reserved (CC BY)
- 7. (c) matlacha, some rights reserved (CC BY-NC-SA)
- 8. (c) Maris Pukitis, some rights reserved (CC BY-NC-SA)
- 9. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 10. (c) Robin Horn, some rights reserved (CC BY-NC-ND)
- 11. (c) rbbrummitt, some rights reserved (CC BY-NC), uploaded by rbbrummitt
- 12. (c) crgillette, some rights reserved (CC BY-NC), uploaded by crgillette
- 13. (c) Michael D Fox, some rights reserved (CC BY), uploaded by Michael D Fox
- 14. (c) Ralf Nowak, some rights reserved (CC BY-NC-SA)
- 15. (c) Sergey Yeliseev, some rights reserved (CC BY-NC-ND)
- 16. (c) Becky Gregory, some rights reserved (CC BY-ND)
- 17. (c) Nick Varvel, some rights reserved (CC BY)
- 18. (c) Jean-Guy Dallaire, some rights reserved (CC BY-NC-ND)
- 19. (c) Cullen Hanks, some rights reserved (CC BY-NC), uploaded by Cullen Hanks
- 20. (c) moviecoco568, some rights reserved (CC BY)
- 21. (c) Sue Wetmore, some rights reserved (CC BY-NC), uploaded by Sue Wetmore
- 22. (c) Danny Barron, some rights reserved (CC BY-NC-ND)
- 23. (c) DaPuglet, some rights reserved (CC BY-SA)
- 24. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
- 25. (c) timmenzies on Flickr, some rights reserved (CC BY-SA)
- 26. (c) copepodo, some rights reserved (CC BY-NC-ND)
- 27. (c) Ian Manning, some rights reserved (CC BY), uploaded by Ian Manning
- 28. (c) Cephas, some rights reserved (CC BY-SA)
- 29. (c) Maggie, some rights reserved (CC BY-NC)
- 30. (c) António Pena, some rights reserved (CC BY-NC-SA)
- 31. (c) Eli Sagor, some rights reserved (CC BY-NC)
- 32. (c) Marie Studer, some rights reserved (CC BY), uploaded by Marie Studer
- 33. (c) Matt Lavin, some rights reserved (CC BY-SA)
- 34. (c) Doug Focht, some rights reserved (CC BY-NC-ND)
- 35. (c) Richard Droker, some rights reserved (CC BY-NC-ND)