The 4,000-Year History of Humans and Silk

Silk is one of the most luxurious fabrics for clothing and bedding. Unlike cotton or linen, silk is made most commonly by insects—often the Bombyx mori, a domesticated moth that feeds on the leaves of mulberry trees. Humans have a 4,000-year history with the textile and the creatures that make it, as documented in the new book Silk: A World History.Since silk has an unconventional origin as a secretion rather than a plant product, it has unique biological qualities that make it strong and enduring. And because it’s a natural protein fiber, it’s biodegradable, so scientists think it could have a future as a sustainable alternative to plastics and electronic parts.Guest host Arielle Duhaime-Ross speaks with Dr. Aarathi Prasad, biologist and author of Silk: A World History. They discuss the ways humans have changed silk-creating creatures through domestication, future applications of the textile, and Prasad’s experience growing silkworms of her own.Read an excerpt from Silk: A World History at sciencefriday.com.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

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