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
Hiroshi Mori (writer) In fact, he finished his first novel in just a week by sparing a mere three hours at night after a day's work at the university. Although he writes very fast, he admits that he is not a good reader, and curiously, the bulk of his time is spent reading proof sheets rather than actually writing. At the same time, Mori is extremely punctual, and his editor Misa Inako affirms that he has never missed a deadline. Mori has so far produced over thirty mystery novels; moreover, he has worked on a wide variety of genres in the past few