Edited by Curtis Eckerman, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) George Shepherd, some rights reserved (CC BY-NC-SA)
- 2. (c) Ian Sutton, some rights reserved (CC BY)
- 3. (c) Emma Harrower, some rights reserved (CC BY-NC)
- 4. (c) Richard Carter, some rights reserved (CC BY-NC-SA)
- 5. (c) Bas Kers, some rights reserved (CC BY-NC-SA)
- 6. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 7. (c) Mikael Behrens, some rights reserved (CC BY-NC), uploaded by Mikael Behrens
- 8. (c) Alvin Diamond, some rights reserved (CC BY-NC), uploaded by Alvin Diamond
- 9. (c) Ken Kellman, some rights reserved (CC BY-NC), uploaded by Ken Kellman
- 10. (c) Belinda Lo, some rights reserved (CC BY-NC-SA)
- 11. (c) Steven Severinghaus, some rights reserved (CC BY-NC-SA)
- 12. (c) Stephen Thorpe, some rights reserved (CC BY-NC), uploaded by Stephen Thorpe