Edited by Diego Fernando Guillen, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) barloventomagico, some rights reserved (CC BY-NC-ND)
- 2. (c) Doug Greenberg, some rights reserved (CC BY-NC-ND)
- 3. (c) Victor W Fazio III, some rights reserved (CC BY-NC), uploaded by Victor W Fazio III
- 4. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 5. (c) Cláudio Dias Timm, some rights reserved (CC BY-SA)
- 6. (c) Ozan Kilic, some rights reserved (CC BY)
- 7. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 8. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 9. (c) Owen Strickland, some rights reserved (CC BY-NC), uploaded by Owen Strickland
- 10. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 11. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 12. (c) Gregory "Slobirdr" Smith, some rights reserved (CC BY-SA)
- 13. (c) Leonel Roget, some rights reserved (CC BY), uploaded by Leonel Roget
- 14. (c) Kenneth Cole Schneider, some rights reserved (CC BY-NC-SA)
- 15. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
- 16. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 17. (c) U.S. Fish and Wildlife Service Northeast Region, some rights reserved (CC BY)
- 18. (c) Nick Chill, some rights reserved (CC BY-NC-ND)