What do you think?
Rate this book


384 pages, Hardcover
Published July 16, 2024
More and more young males now gathered on the floor of the pen, doing less and less. Calhoun noted how “the frustrated, rebuffed younger males begin to avoid their older associates, and participation in courtship activities with females declines, then disappears.” Rejected first from possession of property [ a burrow] and latterly excluded from reproductive activity, then to huddle in listless pools at the center of the pen where the divider spindles converged to form a sort of no-man’s land. In Calhoun’s terms, “they had ceased trying to acquire a normal social role.” Although these mice were still physically present, and relatively healthy, they played no part in the social life of the universe [pen]: “Socially speaking, they had removed themselves from the universe, they had psychologically emigrated.”
What happens if you put a bunch of rats in an enclosure and provision them with unlimited food and water? Researcher John B. Calhoun was committed to finding out. Results from Calhoun’s “rat utopia” experiments from the mid-20th century revealed a behavioral dark side that emerged as space grew increasingly limited, ultimately leading to complete population collapse. As headlines conveyed dire warnings about global overpopulation, Calhoun’s work served to reinforce those fears and shape our understanding of the importance of personal space. In this week’s TPWKY book club episode, Jon Adams and Edmund Ramsden join me to discuss their book, Rat City: Overcrowding and Urban Derangement in the Rodent Universes of John B. Calhoun. Tune in for a fascinating a tour through Calhoun’s bizarre and influential research, which even inspired a beloved (if a little creepy) children’s book and movie, Mrs. Frisby and the Rats of NIMH.
Support this podcast by shopping our latest sponsor deals and promotions at this link: https://bit.ly/3WwtIAu
See omnystudio.com/listener for privacy information.