This book delves into eight landmark experiments on rats and mice-often ethically troubling yet profoundly insightful-conducted to understand social behavior. These studies, including the Rat Utopia, Rat Park, and drowning experiments, reveal critical lessons about overcrowding, addiction, resilience, and social connection. By examining their social implications, the book honors the sacrificed animals and the scientists' contributions while condemning the cruelty as unnecessary to repeat. Each experiment highlights a social theme, contrasting today's fragmented, competitive society with a potential future where lessons are applied to foster connection, resilience, and equity. The book culminates in a social model that integrates these lessons, offering readers a choice: perpetuate the current trajectory of isolation and conflict or embrace a humane, interconnected society with measurable benefits.