Yoshihito was born on June 11, 1971 in Tokyo, Japan. He received Ph.D in physics in 1999. He is a researcher on molecular evolution and comparative genomics, in which the DNA sequence information of various organisms is analyzed with the aid of a computer to elucidate evolutionary changes. He is interested in almost everything, but especially in mathematics, physics, natural history, anthropology, linguistics, any languages, culture of ethnic minorities, and photography. He has written book reviews for >500 books. He also loves to travel around the world and to climb mountains.