Bombyx mori 300 to about 900 m (1,000 to 3,000 ft) long. The fibers are very fine and lustrous, about 10 μm (0.0004 in) in diameter. About 2,000 to 3,000 cocoons are required to make a pound of silk (0.4 kg). At least 70 million pounds of raw silk are produced each year, requiring nearly 10 billion cocoons. Due to its small size and ease of culture, the silkworm has become a model organism in the study of lepidopteran and arthropod biology. Fundamental findings on pheromones, hormones, brain structures, and physiology have been made with the silkworm. One example of this was
Mori, Hokkaido caught in plentiful supply near Mori, and used as a way to ration rice. The Abe Bentōten store continues as the Ikameshi Abeshoten Co., a bentō and prepared foods company, located in Mori, with a shop at Mori Station. Mori is home to one high school, Mori Prefectural High School, a public high school operated by the Prefecture of Hokkaido. The high school was established in 1941 as a girl's high school run by the Town of Mori, but became a coeducation high school run by the prefecture in 1948. The Town of Mori Board of Education maintains two middle