Edited by jrpscott, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Biopix, some rights reserved (CC BY-NC)
- 2. (c) WoRMS for SMEBD, some rights reserved (CC BY-NC-SA)
- 3. Hartley, William W., no known copyright restrictions (public domain)
- 4. (c) Jesús Rodríguez Fernández, some rights reserved (CC BY-NC-ND)
- 5. (c) bathyporeia, some rights reserved (CC BY-NC-SA)
- 6. (c) Visit Greenland, some rights reserved (CC BY-NC-ND)
- 7. (c) Bas Kers, some rights reserved (CC BY-NC-SA)
- 8. (c) Ma.arzola, some rights reserved (CC BY-SA)
- 9. (c) Lorenzo Andrioli, some rights reserved (CC BY-SA)