Bombyx mori silk only once annually. The second type is called bivoltine and is normally found in China, Japan, and Korea. The breeding process of this type takes place twice annually, a feat made possible through the slightly warmer climates and the resulting two life cycles. The polyvoltine type of mulberry silkworm can only be found in the tropics. The eggs are laid by female moths and hatch within nine to 12 days, so the resulting type can have up to eight separate life cycles throughout the year. Eggs take about 14 days to hatch into larvae, which eat continuously. They have
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