GULP: ADVENTURES on the ALIMENTARY CANAL (audiobook) by Mary Roach
Published by Tantor Audio in 2013. Read by Emily Woo Zeller Duration: 8 hours, 21 minutes. Unabridged Mary Roach focuses her often-humorous, always oddball approach to science on the human digestive tract in GULP , a book that always entertains, even if it doesn't always stay on topic. To be fair, she stays in the general area of the topic. For example, when she talks about how much your sense of smell affects your sense of taste she goes into a long (and interesting and sometimes gross) look at the pet food industry and how they convince dogs and cats to eat gross food by making it smell really, really enticing. Topics include: saliva, how much a human stomach will actually hold, why lots of animals eat their own poop, why cows ruminate, the role of bacteria in digestion, enlarged colons, why prisoners sneak things into jail by putting them up their rectum but terrorists don't put bombs in the same place, why farts smell and, in an off-topic moment, she discusses if th...