Edited by Brittany Burson, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) David Cook, some rights reserved (CC BY-NC)
- 2. (c) WoRMS for SMEBD, some rights reserved (CC BY-NC-SA)
- 3. (c) 2001 California Academy of Sciences, some rights reserved (CC BY-NC-SA)
- 4. (c) David Nowell, some rights reserved (CC BY-NC-ND)
- 5. (c) 2007 California Academy of Sciences, some rights reserved (CC BY-NC-SA)