Edited by Jarrett Wansley, Alison Loar, and kgallen, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) 2011 Bill Stagnaro, some rights reserved (CC BY-SA)
- 2. (c) etrusko25, some rights reserved (CC BY-SA)
- 3. (c) Biopix, some rights reserved (CC BY-NC)
- 4. (c) Adam Cohen, some rights reserved (CC BY), uploaded by Adam Cohen
- 5. (c) Wisconsin Department of Natural Resources, some rights reserved (CC BY-ND)
- 6. (c) Clinton & Charles Robertson, some rights reserved (CC BY)
- 7. (c) Noel Burkhead, some rights reserved (CC BY-NC-SA)
- 8. (c) JonesRiver, some rights reserved (CC BY-NC-ND)
- 9. Ken Hammond, no known copyright restrictions (public domain)
- 10. (c) Hunter Desportes, some rights reserved (CC BY-SA)
- 11. (c) Scott Wilson, some rights reserved (CC BY-ND)
- 12. (c) Petroglyph, some rights reserved (CC BY-NC), uploaded by Petroglyph
- 13. (c) Jacob Stagg, some rights reserved (CC BY-NC), uploaded by Jacob Stagg
- 14. (c) Jonathan (JC) Carpenter, some rights reserved (CC BY-NC), uploaded by Jonathan (JC) Carpenter
- 15. (c) Ben Cantrell, some rights reserved (CC BY-NC), uploaded by Ben Cantrell
- 16. (c) Brian Gratwicke, some rights reserved (CC BY)
- 17. (c) Cephas, some rights reserved (CC BY-SA)
- 18. Wikimedia Commons, no known copyright restrictions (public domain)
- 19. (c) Museum of Comparative Zoology, Harvard University, some rights reserved (CC BY-NC-SA)
- 20. Ellen Edmonson and Hugh Chrisp, no known copyright restrictions (public domain)