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Photo Credits
- 1. (c) Acácio Costa, some rights reserved (CC BY-NC), uploaded by Acácio Costa
- 2. (c) Dmitriy Konstantinov, some rights reserved (CC BY-SA)
- 3. (c) paubatllev, some rights reserved (CC BY-NC), uploaded by paubatllev
- 4. (c) Víctor Cebollada, some rights reserved (CC BY-SA)
- 5. (c) whodden, some rights reserved (CC BY-NC), uploaded by whodden
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- 7. (c) Alfiero Brisotto, some rights reserved (CC BY-NC-SA)
- 8. (c) Julien Renoult, some rights reserved (CC BY), uploaded by Julien Renoult
- 9. (c) Roberto Pillon, some rights reserved (CC BY)
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- 11. (c) tamsynmann, some rights reserved (CC BY-NC), uploaded by tamsynmann
- 12. (c) fabri, some rights reserved (CC BY-NC), uploaded by fabri
- 13. (c) Gonzalo Mucientes Sandoval, some rights reserved (CC BY-NC-SA), uploaded by Gonzalo Mucientes Sandoval
- 14. (c) Lmbuga Commons, some rights reserved (CC BY-SA)
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- 16. (c) José Antonio Gil Martínez, some rights reserved (CC BY)
- 17. (c) Nemo's great uncle, some rights reserved (CC BY-NC-SA)
- 18. (c) Roberto Pillon, some rights reserved (CC BY-NC), uploaded by Roberto Pillon
- 19. (c) Joe Kunkel, some rights reserved (CC BY-NC), uploaded by Joe Kunkel
- 20. (c) Stefan, some rights reserved (CC BY-NC), uploaded by Stefan
- 21. (c) Simone Carletti, some rights reserved (CC BY-NC-ND)
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- 23. (c) KayKayKnurrhahn, some rights reserved (CC BY-SA)
- 24. (c) Museum of Comparative Zoology, Harvard University, some rights reserved (CC BY-NC-SA)
- 25. (c) bathyporeia, some rights reserved (CC BY-NC-SA)
- 26. (c) Guido Schmitz, some rights reserved (CC BY-NC), uploaded by Guido Schmitz
- 27. (c) Bas Kers (NL), some rights reserved (CC BY-NC-SA)
- 28. (c) Tony Strazzari, some rights reserved (CC BY-NC), uploaded by Tony Strazzari
- 29. (c) Francesco Ricciardi, some rights reserved (CC BY-NC), uploaded by Francesco Ricciardi
- 30. (c) Alison Young, some rights reserved (CC BY-NC), uploaded by Alison Young
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- 33. (c) Daniela Kupschus, some rights reserved (CC BY-NC), uploaded by Daniela Kupschus
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- 36. (c) Sascha Schulz, some rights reserved (CC BY-NC), uploaded by Sascha Schulz
- 37. (c) Mark Rosenstein, some rights reserved (CC BY-NC-SA), uploaded by Mark Rosenstein
- 38. (c) Warwick Moyse, some rights reserved (CC BY-NC), uploaded by Warwick Moyse
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- 43. (c) josepvilanova, some rights reserved (CC BY-NC), uploaded by josepvilanova
- 44. (c) David Renoult, some rights reserved (CC BY-NC), uploaded by David Renoult
- 45. (c) Greg III Espera, some rights reserved (CC BY), uploaded by Greg III Espera
- 46. (c) Dan Johnson, some rights reserved (CC BY-NC), uploaded by Dan Johnson
- 47. (c) Gökçe Coşkun, some rights reserved (CC BY-NC), uploaded by Gökçe Coşkun
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- 50. (c) Brian Gratwicke, some rights reserved (CC BY)
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