Detailed text transcripts for TV channel - MSNBC - 20130401:19:34:00
People do it every day. we're obsessed with it from a young age and we all love to do it. when it comes to an end, most of russ too embarrassed to talk about it. i'm talking about eating. for most of us, after we stop tasting it, the eating process is a complete mystery. our next guest who the "washington post" call the funniest science writer on the planet, wants to take out a ride through the digestive tract from the beginning to, yes, the very end. joining us now, mary has written books about everything from sex, cadavers to life on mars. now the author of gulp. thanks for being here. >> i ...
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