Edited by Peter N Dudley, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Marc-André Jung, some rights reserved (CC BY-NC-SA)
- 2. (c) wanderflechten, some rights reserved (CC BY-NC-ND)
- 3. (c) Tatiana Bulyonkova, some rights reserved (CC BY-NC-SA)
- 4. (c) Damon Tighe, some rights reserved (CC BY-NC), uploaded by Damon Tighe
- 5. (c) Alan English CPA, some rights reserved (CC BY-NC)
- 6. (c) Christian Schwarz, some rights reserved (CC BY-NC), uploaded by Christian Schwarz
- 7. (c) James Maughn, some rights reserved (CC BY-NC), uploaded by James Maughn
