Edited by Raymond Rugg, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) jmoralesrbpc, some rights reserved (CC BY-NC), uploaded by jmoralesrbpc
- 2. (c) mauroguanandi, some rights reserved (CC BY)
- 3. (c) Victor Radziun, some rights reserved (CC BY-NC-SA)
- 4. (c) Pandiyan V, some rights reserved (CC BY-NC)
- 5. (c) Joshua Tree National Park, some rights reserved (CC BY)
- 6. (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA)