Edited by Lesley Clements, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) riblje-oko.hr, some rights reserved (GFDL)
- 2. (c) Østergaard, T., some rights reserved (CC BY-NC)
- 3. (c) Philippe Guillaume, some rights reserved (CC BY)
- 4. (c) jome jome, some rights reserved (CC BY-NC-ND)
- 5. (c) Markus Studer, some rights reserved (CC BY-NC-SA)
- 6. Etrusko25, no known copyright restrictions (public domain)
- 7. (c) Matthieu Sontag, some rights reserved (CC BY-SA)
- 8. (c) sarah faulwetter, some rights reserved (CC BY-NC-SA)
- 9. (c) Christophe Quintin, some rights reserved (CC BY-NC)
- 10. (c) Daniel Vaulot, some rights reserved (CC BY-NC-SA)
- 11. (c) Arnaud Abadie, some rights reserved (CC BY)
- 12. (c) albert kok, some rights reserved (CC BY-SA)
- 13. (c) Jean-Loup Castaigne, some rights reserved (CC BY-NC-SA)
- 14. (c) Philippe Guillaume, some rights reserved (CC BY-NC-ND)
- 15. (c) WoRMS for SMEBD, some rights reserved (CC BY-NC-SA)
- 16. (c) Biopix, some rights reserved (CC BY-NC)
- 17. (c) riblje-oko.hr, some rights reserved (CC BY-SA)
- 18. (c) Submon.org Submon.org, some rights reserved (CC BY-NC-SA)
- 19. (c) Alex Lopez, some rights reserved (CC BY-NC-SA)
- 20. (c) zslamaj, some rights reserved (CC BY-NC-SA)