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  1. Artwork of Caudipteryx sp., a bird-like dinosaur
  2. Artwork of an Allosaurus dinosaur, Allosaurus sp
  3. Artwork of a Tyrannosaurus rex dinosaur
  4. Artwork of a Tyrannosaurus rex dinosaur
  5. Artwork of a plesiosaur dinosaur hunting
  6. Artwork of a Maiasaura dinosaur
  7. Artist's impression of Tyrannosaurus rex
  8. Artist's impression of Tyrannosaurus
  9. Brain and spinal cord, 1844 artwork
  10. Aurora observations, 1839
  11. Ader's flying machine, 19th century
  12. 16th century map of Sardinia cartouche
  13. Palm in Bamboo IV
  14. Palm in Bamboo III
  15. Palm in Bamboo II
  16. Palm in Bamboo I
  17. Female human head with brain
  18. Egyptian and Assyrian counting systems
  19. Dragonflies, 17th century artwork
  20. DNA replication, artwork
  21. DNA molecule, artwork
  22. DNA assembly, artwork
  23. Distillation, 16th century woodcut
  24. Diphtheria treatment, artwork
  25. Digestive system, artwork
  26. Development of Arabic numerals
  27. Detached blood clot, artwork
  28. Cryptogamic plants, 19th century artwork
  29. Conrad Gessner's nature collection
  30. Concentrating sunlight, 17th century
  31. Comet of 1811, 19th century artwork
  32. Circulatory system and brain, artwork
  33. Circulatory system and brain, artwork
  34. Cingulate gyrus in the brain, artwork
  35. Chloroform analysis, 19th century artwork
  36. Chinese compass, 18th century manuscript
  37. Cardiovascular system, artwork
  38. Cannabinoid receptor binding, artwork
  39. Bronchial tree and lungs, artwork
  40. Brain, artwork
  41. Brain, artwork
  42. Brain coral, artwork
  43. Brain antomy, 19th century artwork
  44. Blood vessels and kidneys, artwork
  45. Blood types, conceptual image
  46. Blood spectra, 19th century artwork
  47. Blood cells in blood vessel, artwork
  48. Bacterial lung infection