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
Maru Maru Mori Mori! Maru Maru Mori Mori! On 4 April 2011, it was announced that the theme song of the Fuji Television television drama "Marumo no Okite" will be sung by actress Mana Ashida and Fuku Suzuki, both of whom are also starring in the television drama. They formed a temporary group called Kaoru to Tomoki, Tamani Mook, and the song that they will be singing is entitled "Maru Maru Mori Mori!" This singles album debuted on the Oricon charts at the third position with sales of around 35 thousand albums in the first week. This makes the group the youngest group ever