Edited by Silas Eckhardt, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Ilona L, some rights reserved (CC BY-NC-SA)
- 2. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 3. (c) Andrew Campbell, some rights reserved (CC BY), uploaded by Andrew Campbell
- 4. (c) mayfly1963, some rights reserved (CC BY), uploaded by mayfly1963
- 5. (c) John B., some rights reserved (CC BY)
- 6. (c) Eric Neubauer, some rights reserved (CC BY-NC), uploaded by Eric Neubauer
- 7. (c) Jason Headley, some rights reserved (CC BY-NC), uploaded by Jason Headley
- 8. (c) Alex Harman, some rights reserved (CC BY-NC), uploaded by Alex Harman
- 9. (c) Andrew Core, some rights reserved (CC BY-NC), uploaded by Andrew Core
- 10. (c) Yan Chun Su, some rights reserved (CC BY-NC-ND), uploaded by Yan Chun Su
- 11. (c) ellen hildebrandt, some rights reserved (CC BY-NC), uploaded by ellen hildebrandt
- 12. no rights reserved, uploaded by mbelitz
- 13. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 14. (c) Belinda Lo, some rights reserved (CC BY-NC-SA)
- 15. (c) AJ Johnson, some rights reserved (CC BY-NC), uploaded by AJ Johnson
- 16. (c) victor rodriguez, some rights reserved (CC BY-NC), uploaded by victor rodriguez
- 17. (c) Catherine C. Galley, some rights reserved (CC BY-NC), uploaded by Catherine C. Galley
- 18. (c) Shahan Derkarabetian, some rights reserved (CC BY-SA), uploaded by Shahan Derkarabetian
- 19. (c) Pedro Alanis, some rights reserved (CC BY-NC), uploaded by Pedro Alanis
- 20. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 21. (c) Masumi Palhof, some rights reserved (CC BY-NC), uploaded by Masumi Palhof
- 22. (c) Ted MacRae, some rights reserved (CC BY-NC), uploaded by Ted MacRae
- 23. (c) Arturo Santos, some rights reserved (CC BY), uploaded by Arturo Santos
- 24. (c) Tom Palmer, some rights reserved (CC BY-NC), uploaded by Tom Palmer
