604182 external_news 1521822572 1521822572 "A person's accomplishments accumulate over years and decades. Something else accumulates, too — their poop. The quantities of poop that people leave behind during an individual bathroom break can vary widely, depending on age, body weight, diet, exercise and other factors." David Hu's research on how long it takes animals to defecate informs this story. Hu is affiliated with the Schools of Mechanical Engineering, Biological Sciences, and Physics. 

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