Edited by Marie Studer, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Kent McFarland, some rights reserved (CC BY-NC)
- 2. (c) Virens (Latin for greening), some rights reserved (CC BY-NC-ND)
- 3. (c) Elizabeth Sellers, some rights reserved (CC BY-NC-SA)
- 4. (c) AnneTanne, some rights reserved (CC BY-NC)
- 5. (c) Superior National Forest, some rights reserved (CC BY)
- 6. (c) Anita, some rights reserved (CC BY-NC-SA)
- 7. (c) arghman, some rights reserved (CC BY-NC-ND)
- 8. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 9. (c) Aydin Örstan, some rights reserved (CC BY-NC-ND)
- 10. (c) Timothy Valentine, some rights reserved (CC BY-NC-SA)
- 11. (c) Calin Darabus, some rights reserved (CC BY)
- 12. (c) myiarchus22, some rights reserved (CC BY-NC)
- 13. (c) Nick Beck, some rights reserved (CC BY-NC-SA)
- 14. (c) copepodo, some rights reserved (CC BY-NC-ND)
- 15. (c) Danny Barron, some rights reserved (CC BY-NC-ND)
- 16. (c) António Pena, some rights reserved (CC BY-NC-SA)
- 17. (c) euphro, some rights reserved (CC BY-SA)
- 18. (c) James Ellison, some rights reserved (CC BY)
- 19. (c) Shihmei Barger 舒詩玫, some rights reserved (CC BY-NC-ND)