Edited by Alison Loar, Alan W, Wendy Cass, and Wendy Cass, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Anita, some rights reserved (CC BY-NC)
- 2. (c) Ken-ichi Ueda, some rights reserved (CC BY)
- 3. (c) Linda Gail Price, some rights reserved (CC BY-NC), uploaded by Linda Gail Price
- 4. (c) Alan Rockefeller, some rights reserved (CC BY-SA)
- 5. (c) Kathy Warburton, some rights reserved (CC BY), uploaded by Kathy Warburton
- 6. (c) Franco Folini, some rights reserved (CC BY)
- 7. (c) Justin, some rights reserved (CC BY)
- 8. (c) Jason Hollinger, some rights reserved (CC BY)
- 9. (c) birdgal5, some rights reserved (CC BY-NC-ND)
- 10. (c) Vee, some rights reserved (CC BY-NC-ND)
- 11. (c) Distant Hill Gardens, some rights reserved (CC BY-NC-ND)
- 12. (c) J Brew, some rights reserved (CC BY-NC-SA), uploaded by J Brew
- 13. (c) Cody Hough, some rights reserved (CC BY-NC-SA)
- 14. (c) Tom, some rights reserved (CC BY)
- 15. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA)
- 16. (c) Kari Pihlaviita, some rights reserved (CC BY-NC)
- 17. (c) Robert Coulombe, some rights reserved (CC BY-SA)
- 18. (c) Valter Jacinto, some rights reserved (CC BY-NC-SA)
- 19. (c) Lorraine Phelan, some rights reserved (CC BY-NC-SA)
- 20. (c) natureluvr01, some rights reserved (CC BY)
- 21. (c) anonymous, some rights reserved (CC BY-SA)
- 22. (c) Kathie Hodge, some rights reserved (CC BY-NC-SA)
- 23. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC-SA)
- 24. (c) Jerzy Opioła, some rights reserved (CC BY-SA)
- 25. (c) Boriss Lariushin, some rights reserved (CC BY-NC-SA)
- 26. (c) Tracy, some rights reserved (CC BY-NC-SA), uploaded by Tracy
- 27. (c) Chris, some rights reserved (CC BY-NC-ND)
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- 29. (c) randomtruth, some rights reserved (CC BY-NC-SA)
- 30. (c) sara, some rights reserved (CC BY-NC-ND), uploaded by sara
- 31. (c) Andreas Philipp, some rights reserved (CC BY-NC-ND)
- 32. (c) Thierry Bissonnette, some rights reserved (CC BY)
- 33. František ŠARŽÍK, no known copyright restrictions (public domain)
- 34. (c) Leo Papandreou, some rights reserved (CC BY-NC-SA)
- 35. (c) P. A. H, some rights reserved (CC BY-NC-ND)
- 36. (c) Gerhard Koller, some rights reserved (CC BY-SA)
- 37. (c) Sarah Gregg, some rights reserved (CC BY-NC)
- 38. (c) AnneTanne, some rights reserved (CC BY-NC-SA)
- 39. (c) AnneTanne, some rights reserved (CC BY-NC)
- 40. (c) Jenn Conspiracy, some rights reserved (CC BY-NC-ND)
- 41. (c) Martin LaBar, some rights reserved (CC BY-NC)
- 42. (c) antefixus, some rights reserved (CC BY-NC-ND)
- 43. (c) Nathan Wilson, some rights reserved (CC BY-SA)
- 44. (c) Tatiana Bulyonkova, some rights reserved (CC BY-NC-SA)
- 45. (c) José Roberto Peruca, some rights reserved (CC BY)
- 46. (c) Nicole, some rights reserved (CC BY-NC-SA)
- 47. (c) licensed media from BioImages DwCA without owner, some rights reserved (CC BY-NC-SA)
- 48. (c) Bryant Olsen, some rights reserved (CC BY-ND), uploaded by Bryant Olsen
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- 53. (c) Chris, some rights reserved (CC BY-NC-SA)
- 54. (c) Arthur Chapman, some rights reserved (CC BY-NC-SA)
- 55. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
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- 57. (c) Franco Folini, some rights reserved (CC BY-SA)
- 58. (c) Noah Siegel, some rights reserved (CC BY-NC-SA)