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
Mark Mori Mark Mori Mark Mori is an American documentary filmmaker, television producer and screenwriter of documentary and reality television series and specials. He produced and directed, "Bettie Page Reveals All", the authorized documentary film on life of pin-up model, Bettie Page, released in 2012. Previously, Mori produced and directed "Building Bombs", Academy Award nominee for Best Feature Documentary for 1990 (DVD release by Docurama/New Video in 2005), Executive Produced, "", documentary short Academy Award nominee for 1993; received an Emmy Award for the television documentary special, "Kent State, the Day the War Came" Home for 2000; co-produced "The Fire This Time",