Edited by Noeliria Noe, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Giorgio___, some rights reserved (CC BY-NC-SA)
- 2. (c) Christian Schwarz, some rights reserved (CC BY-NC), uploaded by Christian Schwarz
- 3. (c) Serge M. Appolonov, some rights reserved (CC BY-NC), uploaded by Serge M. Appolonov
- 4. (c) Marjan Kustera, some rights reserved (CC BY-NC), uploaded by Marjan Kustera
- 5. (c) Davide Puddu, some rights reserved (CC BY-NC), uploaded by Davide Puddu
- 6. (c) Marco Floriani, some rights reserved (CC BY-NC), uploaded by Marco Floriani
- 7. (c) APRN Necaxa, some rights reserved (CC BY-NC), uploaded by APRN Necaxa
- 8. (c) Nathan Wilson, some rights reserved (CC BY-SA)
- 9. (c) Katja Schulz, some rights reserved (CC BY)
- 10. (c) zacarias, some rights reserved (CC BY-NC), uploaded by zacarias
- 11. (c) Dave Gough, some rights reserved (CC BY)
- 12. (c) noah_siegel, some rights reserved (CC BY-NC-SA), uploaded by noah_siegel
- 13. (c) Harry Harms, some rights reserved (CC BY-NC-SA)
- 14. (c) BiteYourBum.Com Photography, some rights reserved (CC BY-NC-ND)
- 15. (c) Recovering Algebraist, some rights reserved (CC BY-NC-ND)
- 16. (c) Giorgio Bardelli, some rights reserved (CC BY-NC), uploaded by Giorgio Bardelli
- 17. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
- 18. (c) telissaw, some rights reserved (CC BY-NC), uploaded by telissaw
- 19. (c) Manuela B, some rights reserved (CC BY-NC), uploaded by Manuela B
- 20. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA)
- 21. (c) amc, some rights reserved (CC BY-NC), uploaded by amc
- 22. (c) mycohollic, some rights reserved (CC BY-NC), uploaded by mycohollic
- 23. (c) Jerry Cooper, some rights reserved (CC BY), uploaded by Jerry Cooper
- 24. (c) Amber, some rights reserved (CC BY-NC), uploaded by Amber
- 25. (c) Иван Матершев, some rights reserved (CC BY-NC), uploaded by Иван Матершев
- 26. (c) Matthew O'Donnell, some rights reserved (CC BY-NC-SA)
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- 28. (c) Auntie P, some rights reserved (CC BY-NC-SA)
- 29. (c) Dean Zagorac, some rights reserved (CC BY-NC), uploaded by Dean Zagorac
- 30. (c) Benutzer:Paffka, some rights reserved (CC BY)
- 31. (c) Gabe T, some rights reserved (CC BY-NC-ND), uploaded by Gabe T
- 32. (c) jefferykarafa, some rights reserved (CC BY-NC), uploaded by jefferykarafa
- 33. (c) Steve Voght, some rights reserved (CC BY-SA)
- 34. (c) keepps, some rights reserved (CC BY-NC-SA)
- 35. (c) Niels, some rights reserved (CC BY-NC), uploaded by Niels
- 36. (c) Kari Pihlaviita, some rights reserved (CC BY-NC)
- 37. (c) ahmed m, some rights reserved (CC BY-NC-ND)
- 38. (c) Dr. Alison Northup, some rights reserved (CC BY), uploaded by Dr. Alison Northup
- 39. (c) Flavio Rocchi, some rights reserved (CC BY-NC), uploaded by Flavio Rocchi
- 40. no rights reserved, uploaded by Ken Kneidel
- 41. (c) Damon Tighe, some rights reserved (CC BY-NC), uploaded by Damon Tighe
- 42. (c) J. Maughn, some rights reserved (CC BY-NC), uploaded by J. Maughn
- 43. (c) Summit Metro Parks, some rights reserved (CC BY), uploaded by Summit Metro Parks
- 44. (c) Cordula Bernert, some rights reserved (CC BY-NC), uploaded by Cordula Bernert
- 45. (c) tombigelow, some rights reserved (CC BY-NC), uploaded by tombigelow
