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
Mori, Hokkaido schools: Mori Middle School and Sawara Middle School. The town is home to six elementary schools. There are several empty elementary school buildings due to the declining population of Mori Machi. The most recent closings being Ishikura elementary school in 2017 and Akaigawa elementary school in 2011. The town of Mori is served by four post offices. The main post office is in the Miyukichō district, in close proximity to the Mori Town Hall. Keizō Kajiya (b. 1956), a graduate of Ashikaga Institute of Technology and mayor of the former town of Sawara, was elected mayor of Mori on October