Edited by Olga Obedkova, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Dave Lage, some rights reserved (CC BY-NC), uploaded by Dave Lage
- 2. (c) Eddi Bisulli, some rights reserved (CC BY-NC), uploaded by Eddi Bisulli
- 3. (c) Steven Severinghaus, some rights reserved (CC BY-NC-SA)
- 4. (c) Steve Chilton, some rights reserved (CC BY-NC-ND)
- 5. (c) Duarte Frade, some rights reserved (CC BY), uploaded by Duarte Frade
- 6. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
- 7. (c) Jason Whittle, some rights reserved (CC BY-NC-ND), uploaded by Jason Whittle
- 8. (c) H. Zell, some rights reserved (CC BY-SA)
- 9. (c) jadesmith, some rights reserved (CC BY-NC), uploaded by jadesmith
- 10. (c) Jason Headley, some rights reserved (CC BY-NC), uploaded by Jason Headley
- 11. (c) terinnitup, some rights reserved (CC BY-NC), uploaded by terinnitup
- 12. (c) Paul Norwood, some rights reserved (CC BY-NC), uploaded by Paul Norwood
- 13. (c) redlibueb, some rights reserved (CC BY-NC), uploaded by redlibueb
- 14. (c) Mike Leveille, some rights reserved (CC BY-NC), uploaded by Mike Leveille
- 15. (c) Bastiaan, some rights reserved (CC BY-NC-ND)
- 16. (c) HermannFalkner/sokol, some rights reserved (CC BY-NC-SA)
- 17. (c) beautifulcataya, some rights reserved (CC BY-NC-ND)
- 18. (c) Rudolf Schäfer, some rights reserved (CC BY-SA)
- 19. (c) samnme1, some rights reserved (CC BY-NC)
