Edited by Tony Rebelo and Andrea Grobler, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Peter Forster, some rights reserved (CC BY-SA)
- 2. (c) enbodenumer, some rights reserved (CC BY-NC-SA)
- 3. (c) Tony Rodd, some rights reserved (CC BY-NC-SA)
- 4. (c) mauroguanandi, some rights reserved (CC BY)
- 5. (c) melanie cook, some rights reserved (CC BY-NC-SA)
- 6. (c) harison, some rights reserved (CC BY-NC), uploaded by harison
- 7. (c) Donald Hobern, some rights reserved (CC BY)
- 8. (c) Stephen Thorpe, some rights reserved (CC BY-NC), uploaded by Stephen Thorpe
- 9. (c) Clare Snow, some rights reserved (CC BY-NC-SA)
- 10. (c) J Brew, some rights reserved (CC BY-SA)
- 11. (c) cskk, some rights reserved (CC BY-NC-ND)
- 12. (c) Tatiana Gerus, some rights reserved (CC BY)
- 13. (c) sunphlo, some rights reserved (CC BY-NC)
- 14. (c) Valter Jacinto | Portugal, some rights reserved (CC BY-NC-SA)
- 15. (c) Dinesh Valke, some rights reserved (CC BY-NC-SA)
- 16. (c) jmoralesrbpc, some rights reserved (CC BY-NC), uploaded by jmoralesrbpc
- 17. (c) Colin Meurk, some rights reserved (CC BY-SA), uploaded by Colin Meurk
- 18. (c) Joshua Tree National Park, some rights reserved (CC BY)
- 19. (c) Kenneth Bader, some rights reserved (CC BY-NC), uploaded by Kenneth Bader