Edited by Phuentsho, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) noah_siegel, some rights reserved (CC BY-NC-SA), uploaded by noah_siegel
- 2. (c) Nicola van Berkel, some rights reserved (CC BY-SA), uploaded by Nicola van Berkel
- 3. (c) Rogelio Reyna-Hernández, some rights reserved (CC BY-SA), uploaded by Rogelio Reyna-Hernández
- 4. (c) Bob O'Kennon, some rights reserved (CC BY-NC), uploaded by Bob O'Kennon
- 5. (c) Richard Droker, some rights reserved (CC BY-NC-ND)
- 6. (c) Tomás Curtis, some rights reserved (CC BY-NC), uploaded by Tomás Curtis
- 7. (c) johnsteel, some rights reserved (CC BY), uploaded by johnsteel
- 8. (c) conabio_bancodeimagenes, some rights reserved (CC BY-NC-ND), uploaded by conabio_bancodeimagenes
- 9. (c) Alan Rockefeller, some rights reserved (CC BY), uploaded by Alan Rockefeller
- 10. (c) Susan J. Hewitt, some rights reserved (CC BY-NC), uploaded by Susan J. Hewitt
- 11. (c) Christian Schwarz, some rights reserved (CC BY-NC), uploaded by Christian Schwarz
- 12. (c) Giorgio Samorini, some rights reserved (CC BY-NC-SA)
- 13. (c) corndog, some rights reserved (CC BY-NC), uploaded by corndog
- 14. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA)
- 15. (c) Eric Knopf, some rights reserved (CC BY-NC), uploaded by Eric Knopf
- 16. (c) Dulce Ríos, some rights reserved (CC BY-NC), uploaded by Dulce Ríos
- 17. (c) Daniel Folds, some rights reserved (CC BY-NC), uploaded by Daniel Folds
- 18. (c) pinonbistro, some rights reserved (CC BY-SA), uploaded by pinonbistro
- 19. (c) Kim, Hyun-tae, some rights reserved (CC BY-NC), uploaded by Kim, Hyun-tae
- 20. (c) Carlos G Velazco-Macias, some rights reserved (CC BY-NC), uploaded by Carlos G Velazco-Macias
- 21. (c) Oscar Johnson, some rights reserved (CC BY-NC-ND), uploaded by Oscar Johnson
- 22. (c) pierrenoel, some rights reserved (CC BY-NC), uploaded by pierrenoel
- 23. (c) Leo Papandreou, some rights reserved (CC BY-NC-SA)
- 24. (c) Benjamin J. Dion, some rights reserved (CC BY-NC-SA), uploaded by Benjamin J. Dion
- 25. (c) Elizabeth Kabanoff, some rights reserved (CC BY-NC), uploaded by Elizabeth Kabanoff
- 26. (c) Jerry Cooper, some rights reserved (CC BY), uploaded by Jerry Cooper
- 27. (c) Teodoro Chivatá Bedoya, some rights reserved (CC BY-NC), uploaded by Teodoro Chivatá Bedoya
- 28. (c) NASA's Marshall Space Flight Center, some rights reserved (CC BY-NC)
- 29. (c) 大肚魚, some rights reserved (CC BY-NC), uploaded by 大肚魚
- 30. (c) seasav, some rights reserved (CC BY-NC-ND), uploaded by seasav
- 31. (c) Thomas Nataprawira, some rights reserved (CC BY-NC-SA), uploaded by Thomas Nataprawira
- 32. no rights reserved, uploaded by Garrett Taylor
- 33. (c) Jason Hollinger, some rights reserved (CC BY)
- 34. (c) Sequoia Janirella Wrens, some rights reserved (CC BY-NC), uploaded by Sequoia Janirella Wrens
- 35. (c) Sang-Kuk Han, some rights reserved (CC BY-NC), uploaded by Sang-Kuk Han
- 36. (c) tom_carlberg, some rights reserved (CC BY-NC), uploaded by tom_carlberg
- 37. (c) Danny Newman, some rights reserved (CC BY-NC-SA), uploaded by Danny Newman
- 38. (c) Alan Rockefeller, some rights reserved (CC BY-SA)
- 39. (c) Kari Pihlaviita, some rights reserved (CC BY-NC)
