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  1. Passion flower pollen grain, SEM
  2. Broadclub cuttlefish
  3. STS-112 Mission
  4. Test Tube Experiment
  5. Blood samples
  6. AIDS pneumonia infection, TEM
  7. Anthrax bacteria
  8. Buckminsterfullerene
  9. Neck and facial nerves
  10. Close-Up of Molecular Structure Diagrams
  11. Chemicals and rock samples in Darwin's study
  12. 19th-century mining machine
  13. Illustration of action potential of a nerve cell
  14. Illustration of muscle contraction
  15. Acupuncture model
  16. Microscopic view of virus
  17. Genetics of colour blindness, diagram
  18. Artist's impression of Tyrannosaurus rex
  19. Oscilloscope trace
  20. 1812 Egyptian Ibis
  21. Surgeon in operating room
  22. Robot picking bacteria containing human DNA
  23. Di(2-ethylhexyl) phthalate
  24. Edrengiyn Nuruu - USGS Earth as Art
  25. Anatomy of human eye
  26. Build-up of atherosclerotic plaque in an artery
  27. Digestive system, artwork
  28. Artwork of bronchodilator action in asthma
  29. Solar cell
  30. Antibiotic mechanism of action, artwork
  31. Bone death, artwork
  32. Cephalopd eye, artwork
  33. Fallopian tube, SEM
  34. Herceptin breast cancer drug molecule
  35. Human tongue surface, SEM
  36. Antibiotic acting on bacteria
  37. Alveoli
  38. Bacteria infecting a macrophage, SEM
  39. Human immune response, artwork
  40. Group of Escherichia coli bacteria cells, known as E. Coli
  41. Blood vessel anatomy
  42. Sycamore leaf bud, light micrograph
  43. Pipes at Nesjavellir Geothermal Power Plant, Iceland
  44. Diamond structure
  45. Pollen grains, SEM
  46. Studio shot of hand holding test tube with liquid
  47. Blood samples
  48. Doctor examining MRI scans