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  1. Engraving of a nautilus and an ammonite
  2. Multicoloured Meadow
  3. Bare-knuckle Boxers
  4. Carboniferous landscape
  5. Lung bronchioles
  6. Love Birds
  7. Basilica Dome
  8. Grey phalarope, historical artwork
  9. Viral throat infection, artwork
  10. Kumquat, 1996
  11. Clouds forming the shape of Earth's continents
  12. Lungs
  13. French Phrases I
  14. Brooklyn Window #12
  15. Sierre to Zinal Mountain Race, The Finish 2012
  16. Breed Studies VI
  17. Medical zodiac, 15th century diagram
  18. Hannibal (247-c.183 BC) crosses the Alps
  19. Carrigogunnell Castle, Near Limerick, County Limerick, Ireland
  20. Platelet, artwork
  21. Iris Sketch O'keefe Crop I
  22. Knorr Shells VII
  23. Killdeer
  24. Artwork of Caudipteryx sp., a bird-like dinosaur
  25. Foot bones and ligaments
  26. 19th Century internal combustion engine
  27. Construction of the Pyramids
  28. Shades of Coral IV
  29. Breed Studies XII
  30. Doodle Fish
  31. Daybreak
  32. Playful Polar Bear, illustration from 'Nature's Wonderland', 1970
  33. Artwork of Mars Polar Lander descending onto Mars
  34. Composite image of the phases of the Moon
  35. Durer's world map, 1515
  36. Ichthyosaur and prey
  37. Rhodopsin protein molecule
  38. Nerve cell, artwork
  39. Hummingbird Delight IV
  40. Shining Sea - Contemporary Painting
  41. TEEN Flutter of Love
  42. Chinese armada, artwork
  43. Entomology Series IV
  44. Elizabethan England, from 'The Art of Perfume', 1912
  45. School Bus
  46. Simple Songbird Sketches I
  47. Vintage Golden Gate
  48. Cingulate gyrus in the brain, artwork