Edited by Heriberto Ávila-González, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Fritzflohrreynolds, some rights reserved (CC BY-SA)
- 2. (c) Art Mur, some rights reserved (CC BY-NC-ND), uploaded by Art Mur
- 3. (c) Steve Jones, some rights reserved (CC BY-NC), uploaded by Steve Jones
- 4. (c) psweet, some rights reserved (CC BY-SA), uploaded by psweet
- 5. (c) Teale Britstra, some rights reserved (CC BY-NC-ND), uploaded by Teale Britstra
- 6. (c) Victor Engel, some rights reserved (CC BY), uploaded by Victor Engel
- 7. (c) Elizabeth Torres Bahena, some rights reserved (CC BY-NC), uploaded by Elizabeth Torres Bahena
- 8. (c) Ignacio Torres García, some rights reserved (CC BY-NC), uploaded by Ignacio Torres García
- 9. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 10. (c) Elías Flores Ordorica, some rights reserved (CC BY-NC), uploaded by Elías Flores Ordorica
- 11. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 12. (c) Juan Carlos López Domínguez, some rights reserved (CC BY-NC), uploaded by Juan Carlos López Domínguez
- 13. (c) Mike Lusk, some rights reserved (CC BY-NC), uploaded by Mike Lusk
- 14. (c) c michael hogan, some rights reserved (CC BY-NC-SA), uploaded by c michael hogan
