Silkworms are native to northern China where they've been domesticated to produce raw silk. The silkworm moth (or silkmoth) is an all-white creature with a very hairy body, and it has lost the ability to fly. There are many legends about how the insect's silk was originally discovered. In one ancient tale, a cocoon fell into an empress's tea. As she picked it out, silk began wrapping around her finger and she recognized the cocoon as the source of the silk.