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 Ōgai in the historical fantasy novel "Teito Monogatari" by Hiroshi Aramata. Mori is a character in the manga and anime adaptation of "Bungo Stray Dogs". "Bungo Stray Dogs" uses the names, stories and biographical details of authors to create its characters. "From the Japanese Wikipedia article" Mori Ōgai Lieutenant-General , known by his pen name Mori Ōgai (), was a Japanese Army Surgeon general officer, translator, novelist, poet and father of famed author Mari Mori. He obtained his medical license at a very young age and introduced translated German literary works to the Japanese public. Mori Ōgai also was considered the