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W. Wayt Gibbs is a contributing editor for 大众科学 based in Seattle. He also works as a scientific editor at Intellectual Ventures.

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大众科学 Magazine Vol 276 Issue 4This article was originally published with the title “Dredging the Digestive System” in 大众科学 Magazine Vol. 276 No. 4 (), p. 38
doi:10.1038/scientificamerican0497-38
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