Calhoun's famous experiment to create a paradise for mice in a closed space and to observe their progress. The behavior of a growing group of mice changes: they become aggressive, fight, kill babies, and are unable to mate. The utopia eventually collapse. A microcosm of human beings in a civilized society.
閉鎖空間にネズミの楽園を作りその経過を観察したカルフーンの実験。過不足なく食料を与えられ増え続けたネズミ集団の行動の変遷、攻撃的になりケンカをし、異性と交尾が出来なくなり、精神を病む。閉じた文明社会で暮らす人類の将来の縮図