Groups College of Sciences , School of Biological Sciences , School of Physics Status Workflow status: Published Created by: Renay San Miguel Created: 05/03/2017 Modified By: Renay San Miguel Modified: 05/03/2017 Categories Life Sciences and Biology Keywords College of Sciences , School of Biological Sciences , School of Physics , Woodruff School of Mechanical Engineering , David Hu , Patricia Yang , mammals , poop , defecation