Born in 1973. Doctor of Agriculture, Chief Researcher, Animal Research Department, National Museum of Nature and Science. Mammal taxonomy, zoological history. His books include "Dr. Mole's Story of Mole" (Iwanami Jr. New Book), "Mole's Quest for the Invisible" (Tokai University Press), and "Nice to meet you, Mole-kun" (Junior's Visual Journal). The column "Sample Stupid" is being serialized in the monthly magazine "Sotokoto" (Kirakusha).