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Mulberry silk, from the Bombyx mori silkworm moth’s cocoon, is the most common commercial silk.

Even some insects have been domesticated, notably Eurasia’s honeybee and China’s silkworm moth, kept for honey and silk, respectively.

The robotic car’s driver is a silkworm moth tethered in a tiny cockpit so that its legs can move freely over an air-supported ball, a bit like an upside-down computer mouse trackball.

Scientists there recently unveiled a tiny robot that is driven by a male silkworm moth responding to a female moth’s seductive pheromone aroma.

In the book’s final chapter, he traces the journey of a silkworm moth.