The Universe 25 experiment was a highly controversial sociological study conducted in the 1970s by John B. Calhoun, a behavioral researcher at the National Institute of Mental Health. The essence of the experiment was to create ideal conditions where rats could live and breed without any worries, away from predators and free from epidemics and … Читати далі “The Universe 25 Experiment: Lessons Learned from the Controversial Study of Overcrowding and Social Collapse in Rats”