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  1. Fertilisation, artwork
  2. Variety Of Flasks
  3. Pt. Reyes
  4. Insulin molecule
  5. Stegosaurus
  6. Insect microscopy, 19th century
  7. Anatomy of human pancreas, with labels
  8. Plant pore, SEM
  9. Great Auk (Pinguinus impennis), engraving
  10. HIV particles, TEM
  11. Staphylococcus epidermidis bacteria
  12. Leaf midrib, SEM
  13. Sperm production, SEM
  14. Electron orbitals
  15. Trabeculae carneae in the heart, SEM
  16. Hunting sabre-toothed cat
  17. Utility pipes, artwork
  18. Skin section, SEM
  19. Heart and neck blood vessels
  20. Back of brain and spinal cord with head in dark cloud indicating depression
  21. Charles Darwin, British naturalist
  22. X-ray of human and chimpanzee skulls
  23. Human Skin
  24. Railway carriages
  25. Used interdental brush, SEM
  26. Science classroom
  27. 3D Mandelbrot fractal. Computer-generated image derived from a Mandelbrot Set.
  28. Anatomy of female reproductive system
  29. Cervical smear slides
  30. Chemistry beakers and stack of books
  31. DNA sequence on a computer monitor screen
  32. Transverse section of an artery. cardiovascular system, circulatory system
  33. Vegetation Profile Of A Savanna
  34. Apatosaurus
  35. That Dam Cloud
  36. xDNA molecule
  37. Conceptual image of DNA
  38. Elastic cartilage, SEM
  39. Morphine crystals, SEM
  40. Current melting steel wool
  41. The arteries of the brain
  42. Brain coral, artwork
  43. Jordan - USGS Earth as Art
  44. Lunar Gateway Space Station Concept, Complete View
  45. Woman's eye
  46. Pea flower pollination, SEM
  47. Female skeleton, artwork
  48. Ader's flying machine, 19th century