Thanks for connecting! You're almost done. Connect to your existing Cracked account if you have one or create a new Cracked username. Famous for traumatizing children , the cartoon features a widowed field mouse who tries to save her sick mouse kid by getting help from a society of big-brained rats who dream of no longer having to eat garbage for sustenance. Why are the rats so smart? Because they escaped from the National Institute of Mental Health, or NIMH for short, where they were the test subjects of intelligence boosting experiments.
Calhoun to describe a collapse in behavior which can result from overcrowding. The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between and Calhoun coined the term "behavioral sink" in his February 1, report in an article titled "Population Density and Social Pathology" in Scientific American  on the rat experiment. Calhoun's work became used as an animal model of societal collapse , and his study has become a touchstone of urban sociology and psychology in general.