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  1. The analysis of sound frequencies by the basilar membrane.
  2. Veins and nerves of the neck. cardiovascular system, nervous system
  3. Zebra Swallowtail Butterfly, Caterpillar, And Pupae (Eurytides Marcellus)
  4. Quebec - Vintage Map
  5. Abdominal organs in situ. abdominal cavity, digestive system
  6. Canada - Vintage Map
  7. Pegasus, Greek mythology
  8. Buenos Aires, Montevideo, and Vicinity - Vintage Map
  9. Poseidon (Greek), Neptune (Roman), mythology
  10. Tentative phylogenetic scheme for hominid species
  11. Fahrenheit Wind Chill Chart
  12. Tyrannosaurus
  13. Snowy Egret (Leucophoyx Thula) Illustration
  14. European Travel
  15. Simmental Bull, Beef Cattle
  16. Sage Grouse (Centrocercus Urophasianus) Illustration
  17. Beef Cattle (Bos Taurus)
  18. Red Drum (Sciaenops Ocellata)
  19. Queen Parrot Fish (Scarus Vetula)
  20. Living Relatives of Dinoaurs
  21. New York - Vintage Map
  22. Lungs in situ - anterior view. respiratory system
  23. Limousin Bull, Beef Cattle
  24. Front and side views of pelvis in chimpanzee, Australopithecus, and modern human
  25. Thresher Shark (Alopias Vulpinus)
  26. Santa Cruz Islands and New Hebrides - Vintage Map
  27. Skeleton of a Neanderthal compared with that of a modern human
  28. Brahman Bull, Beef Cattle
  29. Straits of Mackinac - Vintage Map
  30. Global Circulation Patterns Diagram
  31. Scotland, Central Part - Vintage Map
  32. Islands of the Pacific Ocean - Vintage Map
  33. Aedes Mosquito (Aedes Aegypti), Yellow Fever Mosquito
  34. Demeter (Greek), Ceres (Roman), mythology
  35. Madeira Islands - Vintage Map
  36. Cross section of human blood vessel showing atherosclerosis
  37. Perseus, Greek mythology
  38. The analysis of sound frequencies by the basilar membrane
  39. Chianini Bull, Beef Cattle
  40. Carolina Chickadee (Parus Carolinensis) Illustration
  41. Muses, Greek and Roman mythology
  42. The increase in hominid cranial capacity over time
  43. Hereford Bull, Beef Cattle
  44. Lake Herring (Coregonus Artedi)
  45. Fun Facts about the U.S. Presidents
  46. Anopheles Mosquito (Anopheles Quadrimaculatus)
  47. Stockholm - Vintage Map
  48. Missouri, Southern Part - Vintage Map