Silkworms Spin Cocoons That Spell Their Own Doom | Deep Look

Those precious silk garments in your closet were made by the caterpillar of a fuzzy white moth – thousands of them. Silkworms spin a cocoon with a single strand of silk up to ten city blocks long. Humans have bred these insects into weaving machines that can no longer survive in the wild. SUBSCRIBE to Deep Look! Please join our community on Patreon! DEEP LOOK is an ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small. — The sumptuous silk in your satiny sheets and glamorous gowns comes from humble beginnings – a caterpillar of the domesticated silk moth. For almost five thousand years, people have raised silkworms for their unique, shimmering material. In just a few days, these caterpillars produce one fine thread of silk