Lepidoptera feathers and hair, bran, semolina and flour (possibly preferring wheat flour), biscuits, casein, and insect specimens in museums. Even though most butterflies and moths affect the economy negatively, some species are a valuable economic resource. The most prominent example is that of the domesticated silkworm moth ("Bombyx mori"), the larvae of which make their cocoons out of silk, which can be spun into cloth. Silk is and has been an important economic resource throughout history. The species "Bombyx mori" has been domesticated to the point where it is completely dependent on mankind for survival. A number of wild moths such
Mori Trust Mori Trust Mori Trust was founded in 1970 as Mori Building Development, a subsidiary of the Mori Building group founded by Taikichiro Mori. Following his death in 1993, his two sons Minoru Mori and Akira Mori disagreed as to how to continue the business, with Minoru wishing to continue the company's focus on existing properties and new large-scale urban projects, and Akira wishing to expand the company's portfolio into more small-scale office and leisure properties. This led to a split of the Mori Building group, with Akira Mori taking over the Mori Building Development entity and renaming it "Mori Trust"