In the 1970s, behavioral researcher John B. Calhoun created what looked like paradise—for mice. There was no hunger, no predators, and no disease. Yet within a few years, every mouse was dead. The experiment, known as Universe 25, has become one of the most disturbing studies in behavioral science, and some believe it carries unsettling lessons for the future of …
Read More »This Terrifying Experiment From the 1970s Predicts the End of Humanity—And It Hits Uncomfortably Close
