TED-Ed
Can we domesticate germs? - Paul Ewald
TV-PG
2013 • E16 Jan 15, 2013 10mEvolutionary biologist Paul Ewald drags us into the sewer to discuss germs. Why are some more harmful than others? How could we make the harmful ones benign? Searching for answers, he examines a disgusting, fascinating case: diarrhea.