Edited by Cheryl Beyer, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Bas Kers (NL), some rights reserved (CC BY-NC-SA)
- 2. (c) Bengt Rehnström, some rights reserved (CC BY)
- 3. (c) 2009 Barry Breckling, some rights reserved (CC BY-NC-SA)
- 4. (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA)
- 5. (c) Leo Papandreou, some rights reserved (CC BY-NC-SA)