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The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [1] In the experiments, Calhoun and his researchers created a series of "rat utopias" [ 2 ] – enclosed spaces where rats were given unlimited access to food and water, enabling unfettered population growth.
It was here that his most famous experiment, the mouse universes (the most famous of which is universe 25), was created. [1] In July 1968, four pairs of mice were introduced into the habitat. The habitat was a 9-foot (2.7 m; 110 in; 270 cm) square metal pen with 4.5-foot-high (1.4 m; 54 in; 140 cm) sides.
They come to the aid of Mrs. Frisby, a widowed field mouse who seeks to protect her children and home from destruction by a farmer's plow. [5] The rats of NIMH were inspired by the research of John B. Calhoun on mouse and rat population dynamics at the National Institute of Mental Health from the 1940s to the 1960s. [6]
Utopian experiment is an alternative name for an intentional community. It also may refer to: Impossible Cities: A Utopian Experiment, a multidisciplinary play; Social experiment for evaluation of utopian proposals. Utopia Experiment, a social experiment in Scotland; The Utopia Experiments, a fictional graphic novel in the British 2013 TV ...
The Seduction Experiment involved four groups of 8 rats. [4] Group CC was isolated in laboratory cages when they were weaned at 22 days of age, and lived there until the experiment ended at 80 days of age; Group PP was housed in Rat Park for the same period; Group CP was moved from laboratory cages to Rat Park at 65 days of age; and Group PC ...
The Utopia Experiment was an experiment by Dylan Evans, set up in 2006 at Netherton Farm, near Culbokie on the Black Isle peninsula in the Scottish highlands. [1] It involved a group of volunteers improvising a post-apocalyptic lifestyle .
The Great Filter is the idea that, in the development of life from the earliest stages of abiogenesis to reaching the highest levels of development on the Kardashev scale, there is a barrier to development that makes detectable extraterrestrial life exceedingly rare.
A biological cosmic ray experiment (BIOCORE) carried the five pocket mice (Perognathus longimembris), a species chosen for the experiment because they had well documented biological responses. Some advantages of the species included their small size, ease of maintenance in an isolated state (requiring no drinking water for the expected duration ...