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  1. Planets' internal structures
  2. Pills being poured into a bottle after counting
  3. Woman's eye
  4. Byrd Glacier - USGS Earth as Art
  5. Morse code apparatus, historical artwork
  6. Comparing Saurischian and Ornithischian Pelvises
  7. Respiratory tract, artwork
  8. Eye exam chart
  9. Heel skin tissue, light micrograph
  10. The muscles of the hand
  11. Spirogyra algae, light micrograph
  12. Artwork of a Tyrannosaurus rex dinosaur
  13. Magnetic field
  14. Coloured SEM of human embryo at the 4-cell stage
  15. Scanning electron micrograph of just-divided HeLa cells
  16. Dental equipment
  17. View of Darwin's desk at Down House
  18. Microscopic view of inner nervous system
  19. Pachycephalosaurus
  20. Human brain anatomy, artwork
  21. Ribozyme molecule
  22. Dragonflies, 17th century artwork
  23. A herd of Brachiosaurus travel near a canyon mountain
  24. The bones of the lower back
  25. Losh and Stephenson's carriage
  26. Megatherium, Extinct Ground Sloth
  27. Kidney glomeruli, SEM
  28. Arm anatomy, historical artwork
  29. Triceratops
  30. Homo floresiensis
  31. A Relative II
  32. General colon anatomy, with labels
  33. Paper chromatograms of various dyes
  34. The Cygnus spacecraft begins its separation from the International Space Station
  35. Skin surface, SEM
  36. Antihistamine drug crystals, SEM
  37. Thyroid gland. endocrine system
  38. Farmers Wanted for Survival on Mars
  39. Refraction of light by bi-concave lens
  40. Muscles of the hand and forearm
  41. Bacteria infecting a macrophage, SEM
  42. Allosaurus
  43. Water purity test
  44. Close-up of beakers containing colored liquid
  45. Human skull
  46. Early astronomical spectroscopy
  47. The bones of the foot
  48. Ratcliffe Power Station