The culture of silkworms is called sericulture. A moist substance, fibroin, is manufactured in two silk glands located on the underside of the larva's body; mixed with a small amount of wax, it is emitted from an orifice called the spinneret, in the lip of the larva. The fibroin dries quickly in the air, hardening into a half-mile-long thread of silk that makes up the cocoon.Four to eight of the silk filaments are twisted together to obtain one strand of silk thread. No wonder silk is so expensive.Sleeping on a silk pillowcase is said to cause a delay in a person getting wrinkles because of the essential amino acids in silk bedding. Silkworm is the brainiest creature in the world ? It has 11 brains!!
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