View full lesson: <a href="http://ed.ted.com/lessons/can-we-domesticate-germs-paul-ewald">http://ed.ted.com/lessons/can-we-domesticate-germs-paul-ewald</a> Evolutionary 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. Talk by Paul Ewald. Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

View full lesson: http://ed.ted.com/lessons/can-we-domesticate-germs-paul-ewald Evolutionary 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. Talk by Paul Ewald. Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: <a href="http://ed.ted.com/lessons/can-we-domesticate-germs-paul-ewald" rel="noopener noreferrer">http://ed.ted.com/lessons/can-we-domesticate-germs-paul-ewald</a> Evolutionary 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. Talk by Paul Ewald. Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices" rel="noopener noreferrer">megaphone.fm/adchoices</a>

Can we cultivate germs? - Paul Ewald

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TED-Ed’s mission is to create lessons worth sharing. Feed and expand your curiosity with our award-winning animated shorts - published on YouTube and available with supplemental learning materials on ed.ted.com. Want to suggest an idea for a TED-Ed animation, nominate an educator or animator? Visit our website at: http://ed.ted.com/get_involved. Consider backing us on Patreon. By doing so, you directly support our nonprofit mission to create free, high-quality educational content: https://www.patreon.com/teded For more information on using TED-Ed content for commercial purposes (e.g. employee learning, in a film, or in an online course), please submit a Media Request using this link: https://media-requests.ted.com/

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Can we cultivate germs? - Paul Ewald

Can we cultivate germs? - Paul Ewald