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Photo Credits
- 1. (c) lonnyholmes, some rights reserved (CC BY-NC), uploaded by lonnyholmes
- 2. (c) Susan Elliott, some rights reserved (CC BY-NC), uploaded by Susan Elliott
- 3. (c) Zach Schiff, some rights reserved (CC BY-NC), uploaded by Zach Schiff
- 4. (c) aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar
- 5. (c) Peter Zika, some rights reserved (CC BY-NC), uploaded by Peter Zika
- 6. (c) t0dd, some rights reserved (CC BY-NC)
- 7. (c) Dick Culbert, some rights reserved (CC BY)
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- 9. (c) Alexis, some rights reserved (CC BY), uploaded by Alexis
- 10. (c) 葉子, some rights reserved (CC BY-NC), uploaded by 葉子
- 11. (c) randomtruth, some rights reserved (CC BY-NC-SA)
- 12. (c) 1998 California Academy of Sciences, some rights reserved (CC BY-NC-SA)
- 13. (c) Bas Kers, some rights reserved (CC BY-NC-SA)
- 14. (c) stonebird, some rights reserved (CC BY-NC-SA)
- 15. (c) Lena Dietz Chiasson, some rights reserved (CC BY-NC), uploaded by Lena Dietz Chiasson
- 16. (c) Janel Johnson, some rights reserved (CC BY), uploaded by Janel Johnson
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- 19. (c) Tim Messick, some rights reserved (CC BY-NC), uploaded by Tim Messick
- 20. (c) pam_reschke, some rights reserved (CC BY-NC), uploaded by pam_reschke
- 21. (c) Kayla Echols, some rights reserved (CC BY-NC), uploaded by Kayla Echols
- 22. (c) Corey Lange, some rights reserved (CC BY-NC), uploaded by Corey Lange
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- 24. (c) Kelly Abram, some rights reserved (CC BY), uploaded by Kelly Abram
- 25. (c) Václav Dvořák, some rights reserved (CC BY-NC), uploaded by Václav Dvořák
- 26. (c) Tom Hilton, some rights reserved (CC BY), uploaded by Tom Hilton
- 27. (c) Matt Lavin, some rights reserved (CC BY-SA)
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- 29. (c) C. Mallory, some rights reserved (CC BY-NC), uploaded by C. Mallory
- 30. (c) Kenneth Bader, some rights reserved (CC BY-NC), uploaded by Kenneth Bader
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- 33. (c) Neil O. Frakes, some rights reserved (CC BY-NC), uploaded by Neil O. Frakes
- 34. (c) Lauren Glevanik, some rights reserved (CC BY-NC), uploaded by Lauren Glevanik
- 35. (c) Joe Decruyenaere, some rights reserved (CC BY-SA)
- 36. (c) Philip Bouchard, some rights reserved (CC BY-NC-ND)
- 37. (c) -adrienne-, some rights reserved (CC BY-NC-ND)
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- 43. (c) Sarah Gregg, some rights reserved (CC BY-NC-SA), uploaded by Sarah Gregg
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- 49. (c) Sergey Mayorov, some rights reserved (CC BY-NC), uploaded by Sergey Mayorov
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- 51. (c) Julia Housden Proulx, some rights reserved (CC BY-NC), uploaded by Julia Housden Proulx
- 52. (c) Alexander Baransky, some rights reserved (CC BY-NC), uploaded by Alexander Baransky
- 53. (c) Matthew Zlatunich, some rights reserved (CC BY-NC), uploaded by Matthew Zlatunich
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- 56. (c) David Greenberger, some rights reserved (CC BY-NC-ND), uploaded by David Greenberger
- 57. (c) pietermier, some rights reserved (CC BY-NC)
- 58. (c) Maria Wheeler-Dubas, some rights reserved (CC BY-NC), uploaded by Maria Wheeler-Dubas
- 59. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 60. (c) Thayne Tuason, some rights reserved (CC BY-NC)
- 61. (c) Zdeňka Nováková, some rights reserved (CC BY-NC), uploaded by Zdeňka Nováková
- 62. (c) Steve Guttman, some rights reserved (CC BY-NC-ND)
- 63. (c) eugenezakharov, some rights reserved (CC BY-NC), uploaded by eugenezakharov
- 64. (c) Andreas Rockstein, some rights reserved (CC BY-SA)
- 65. (c) Almantas Kulbis, some rights reserved (CC BY-NC), uploaded by Almantas Kulbis
- 66. (c) Tobi (he/him), some rights reserved (CC BY), uploaded by Tobi (he/him)
- 67. (c) Erika Mitchell, some rights reserved (CC BY-NC), uploaded by Erika Mitchell
- 68. (c) Marina Gorbunova, some rights reserved (CC BY-NC), uploaded by Marina Gorbunova
- 69. (c) Svetlana Nesterova, some rights reserved (CC BY-NC), uploaded by Svetlana Nesterova
- 70. no rights reserved, uploaded by Jesse Rorabaugh
- 71. (c) Izabella Farr, some rights reserved (CC BY-NC), uploaded by Izabella Farr
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- 73. (c) Kate Bullock, some rights reserved (CC BY-NC), uploaded by Kate Bullock
- 74. (c) George F Mayfield, some rights reserved (CC BY-SA)
- 75. (c) 2012 Keir Morse, some rights reserved (CC BY-NC-SA)
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- 78. (c) Shiwalee Samant, some rights reserved (CC BY-NC), uploaded by Shiwalee Samant
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- 81. (c) Charles Thomas Hash, Jr., some rights reserved (CC BY-NC-ND), uploaded by Charles Thomas Hash, Jr.
- 82. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
- 83. (c) emanon, some rights reserved (CC BY-NC), uploaded by emanon
