the 'digestive' system of the body
(..) The possum was faking it? Yeah. There it goes. - You should go get him. - What do I look like, Ranger Rick? He could have evidence in his digestive tract. - Come on, Bones. - Booth, evidence. - Fine, I'll go get your possum. - Opossum. - Possum. (..)2008 TvShow: Bones Title: The Finger in the Nest Season: 4 Episode 3