Wild silk used to produce cloth. They usually produce a tougher and rougher silk than that from domesticated "Bombyx mori" silkworms. Wild silks are usually harvested after the moths have left the cocoons, cutting the threads in the process, so that there is not one long thread, as with domesticated silkworms. Wild silks are more difficult to bleach and dye than silk from "Bombyx mori", but most have naturally attractive colours, particularly the rich golden sheen of the silk produced by the muga silkworm from Assam, often known as Assam silk. The cocoon shells of wild silk moths are toughened or stabilized
Mori Shogunzuka Kofun Mori Shogunzuka Kofun The is a keyhole-shaped tumulus within the located in Chikuma, Nagano Prefecture Japan. The "kofun" has been restored to what modern archaeologists believe to represent its original form, with reproduction haniwa on top of the mound. Its burial chamber is closed and inaccessible to the public. There is also a museum on site, the Mori Shogunzuka Museum, which displays a reproduction of the burial chamber as well as artifacts unearthed during archaeological investigations. The cluster of four tombs has been designated a National Historic Site by the Japanese government. The Mori Shogunzuka Kofun measures approximately 100 meters