Edited by Margaret Holm, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Gravitywave, some rights reserved (CC BY-NC-SA)
- 2. (c) takomabibelot, some rights reserved (CC BY)
- 3. (c) Carolannie--slow return, some rights reserved (CC BY-NC-ND)
- 4. (c) Matt Lavin, some rights reserved (CC BY-SA)
- 5. (c) Brent Miller, some rights reserved (CC BY-NC-ND)
- 6. (c) David Hofmann, some rights reserved (CC BY-NC-ND)
- 7. (c) Tom Hilton, some rights reserved (CC BY)
- 8. (c) skuarua, some rights reserved (CC BY-NC-ND)
- 9. (c) Hermann Falkner, some rights reserved (CC BY-NC)
- 10. (c) pasa47, some rights reserved (CC BY)
- 11. (c) Lynette Schimming, some rights reserved (CC BY-NC)
- 12. (c) James Gaither, some rights reserved (CC BY-NC-ND)
- 13. (c) Peter Stevens, some rights reserved (CC BY)
- 14. (c) Anthony Mendoza, some rights reserved (CC BY-NC-SA)
- 15. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
- 16. (c) Homer Edward Price, some rights reserved (CC BY)
- 17. (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA)
- 18. (c) Laurel F, some rights reserved (CC BY-SA)
- 19. (c) yluna13, some rights reserved (CC BY-NC), uploaded by yluna13
- 20. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- 21. (c) Arthur Chapman, some rights reserved (CC BY-NC-SA)
- 22. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)