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
Manny Mori had six sons and five daughters. Koben Mori's eldest son Taro is the paternal grandfather of Manny Mori. During his tenure as president, Mori made an official visit to his ancestral homeland in Kochi prefecture in 2008 to commemorate the 20th anniversary of bilateral relations between Japan and the Federated States of Micronesia. He received a warm welcome from the governor and mayor. Mori also paid respects to his ancestor, the primogenitor of the Mori clan, Mori Katsunobu. Mori has four daughters from his first wife Elina Ekiek. He is remarried to Emma Mori. Manny Mori Emanuel "Manny" Mori (born