Spinning Fine Threads: Silkworms coerced to make better silk

The caterpillars that spin commercial silk can make much tougher or more elastic threads, depending on how fast they’re forced to spin.

SILK SOURCE. A silkworm’s cocoon. Shao and Vollrath

If this research finding is translated into a marketable process for obtaining silk, the fibers could rival those of widely acclaimed but commercially impractical spider silk, says Fritz Vollrath of Oxford University.