Does Silkworm Make Cocoon
Silk worms make cocoons around themselves after they turn approximately 1 month old, giving protection to the pupating larva. Cocoons help keep the larva dry. Cocoons can protect the pupa. In general, the cocoon-encased pupa is probably less appetizing to potential predators (mostly birds) than a naked pupa would be. Silkworms will stop eating any food and then they will turn yellowish whenever they are finally ready to start spinning their cocoons. After spinning its cocoon, silkworm will make a hole in the cocoon when it exits as a moth. However, this would cut the threads and ruin the silk. Therefore, silk farmers will throw silkworm cocoons into boiling water to the silkworms, which helps make the cocoons easier to unravel.