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
Akira Mori Akira Mori He attended Keio University, graduating in 1960 and joining Yasuda Trust & Banking (now part of Mizuho Trust & Banking). He formally joined Mori Building as an employee in 1972. Following their father's death in 1993, he and his older brother Minoru Mori inherited the family business and in 1999 they split it after a falling-out. Akira headed Mori Trust, while his brother headed what was left of the Mori Building company until his death on March 8, 2012. Mori Trust owns and operates 67 buildings, manages 89 buildings, consisting of office and residential buildings, mainly in central