Photos:
- 1. (c) Michael Schmidt, some rights reserved (CC BY-NC-SA)
- 2. (c) Liam O'Brien, some rights reserved (CC BY-NC), uploaded by Liam O'Brien
- 3. (c) Denis Doucet, some rights reserved (CC BY-NC), uploaded by Denis Doucet
- 4. (c) cotinis, some rights reserved (CC BY-NC-SA)
- 5. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
- 6. (c) Sam Kieschnick, some rights reserved (CC BY), uploaded by Sam Kieschnick
- 7. (c) Marcello Consolo, some rights reserved (CC BY-NC-SA)
- 8. (c) Anders Illum, some rights reserved (CC BY-NC-ND)
- 9. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 10. (c) Eric Isley, some rights reserved (CC BY-NC), uploaded by Eric Isley
- 11. (c) Judith Ellen Lopez, some rights reserved (CC BY-NC)
- 12. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 13. (c) Stuart Tingley, some rights reserved (CC BY-NC), uploaded by Stuart Tingley
- 14. (c) kestrel360, some rights reserved (CC BY-NC-ND)
- 15. (c) Reiner Jakubowski, some rights reserved (CC BY-SA), uploaded by Reiner Jakubowski
- 16. (c) Katja Schulz, some rights reserved (CC BY-NC)
- 17. (c) Steve Kerr, some rights reserved (CC BY), uploaded by Steve Kerr
- 18. (c) Ken-ichi Ueda, some rights reserved (CC BY)
- 19. (c) John Flannery, some rights reserved (CC BY-SA)
- 20. (c) Carolyn Gritzmaker, some rights reserved (CC BY-NC), uploaded by Carolyn Gritzmaker
- 21. (c) John Brandauer, some rights reserved (CC BY-NC-ND)
- 22. (c) Gilles Gonthier, some rights reserved (CC BY)
- 23. (c) Sean McCann, some rights reserved (CC BY-NC-SA)
- 24. (c) Contact Sanofi Pasteur, some rights reserved (CC BY-NC-ND)
- 25. (c) Monica Krancevic, some rights reserved (CC BY-NC), uploaded by Monica Krancevic
- 26. no rights reserved, uploaded by Jesse Rorabaugh
- 27. (c) Victor W Fazio III, some rights reserved (CC BY-NC-ND), uploaded by Victor W Fazio III
- 28. (c) Katja Schulz, some rights reserved (CC BY)
- 29. (c) dlbowls, some rights reserved (CC BY-NC), uploaded by dlbowls
- 30. (c) Linda Gail Price, some rights reserved (CC BY-NC), uploaded by Linda Gail Price
- 31. (c) James Shelton, some rights reserved (CC BY-NC-SA), uploaded by James Shelton
- 32. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 33. (c) Royal Tyler, some rights reserved (CC BY-NC-SA), uploaded by Royal Tyler
- 34. (c) Bob Peterson, some rights reserved (CC BY-SA)
- 35. (c) President and Fellows of Harvard College, some rights reserved (CC BY-NC-SA)
- 36. (c) Lee Hoy, some rights reserved (CC BY-NC-ND), uploaded by Lee Hoy
- 37. (c) Chuck Sexton, some rights reserved (CC BY-NC), uploaded by Chuck Sexton
- 38. (c) Annika Lindqvist, some rights reserved (CC BY), uploaded by Annika Lindqvist
- 39. (c) John Beetham, some rights reserved (CC BY-NC), uploaded by John Beetham
- 40. (c) Richard Barnes, some rights reserved (CC BY-NC), uploaded by Richard Barnes
- 41. (c) Nellie, some rights reserved (CC BY-NC), uploaded by Nellie
- 42. (c) Mike Chapman, some rights reserved (CC BY-NC)
- 43. (c) Paul Bedell, some rights reserved (CC BY-NC-SA)
- 44. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
- 45. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- 46. (c) Erik Attaway, some rights reserved (CC BY-NC), uploaded by Erik Attaway
- 47. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 48. (c) Judy Gallagher, some rights reserved (CC BY), uploaded by Judy Gallagher
- 49. (c) Meghan Cassidy, some rights reserved (CC BY-SA), uploaded by Meghan Cassidy
Compiled by Laura Kimberly,
some rights reserved
(CC BY-SA)
Built with iNaturalist Guides