Bombyx mori their lifecycle, and enclose themselves in a cocoon made up of raw silk produced by the salivary glands. The final molt from larva to pupa takes place within the cocoon, which provides a vital layer of protection during the vulnerable, almost motionless pupal state. Many other Lepidoptera produce cocoons, but only a few—the Bombycidae, in particular the genus "Bombyx", and the Saturniidae, in particular the genus "Antheraea"—have been exploited for fabric production. If the animal is allowed to survive after spinning its cocoon and through the pupal phase of its lifecycle, it releases proteolytic enzymes to make a hole in
Larva (film) Larva (film) Larva is a 2005 science fiction-horror film, directed by Tim Cox, and written by Kenneth M. Badish, Boaz Davidson, David Goodin, Kevin Moore, J. Paul V. Robert and T.M. Van Ostrand. It stars Vincent Ventresca, Rachel Hunter and William Forsythe. The film taking place in Host, Missouri about a species of fluke-like parasites that have been mutated after ingesting enhanced cow feed. They infect animals (including humans) from the inside and grow at an enormous rate, bursting out of their hosts when they became adults. They go on a rampage, eating anything in their way until they were