Quote by: Mary Roach

The human digestive tract is like the Amtrak line from Seattle to Los Angeles: transit time is about thirty hours, and the scenery on the last leg is pretty monotonous.


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Author Bio


  • NameMary Roach
  • DescriptionAmerican science writer
  • BornMarch 20, 1959
  • CountryUnited States Of America
  • ProfessionWoman Of Letters; Medical Writer