2021年7月22日 · John B Calhoun set about creating a series of experiments that would essentially cater to every need of rodents, and then track the effect on the population over …

" Behavioral sink " is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation. The term and concept derive from a series of …

2016年9月14日 · On July 9th, 1968, eight white mice were placed into a strange box at the National Institute of Health in Bethesda, Maryland. Maybe “box” isn’t the right word for it; the …

2024年8月8日 · Working with rats between 1958 and 1962, and with mice from 1968 to 1972, Calhoun set up experimental rodent enclosures at the National Institute of Mental Health’s …

2024年5月21日 · Universe 25 was populated with mice instead of rats, but most everything else remained the same. Mice had everything they needed to survive and were limited only by …

2024年5月28日 · UNIVERSE 25: John Calhoun crouches within his rodent utopia-turned-dystopia that, at its peak, housed approximately 2,200 mice. Calhoun was studying the breakdown of …

2022年5月17日 · Biologist John Calhoun’s rodent experiments gripped a society consumed by fears of overpopulation. John Calhoun crouching inside Universe 25, his famous mouse …

2023年8月11日 · During the 1960s, a project called Universe 25 experiment was conducted to study the social behavior of rodents. Known as the most terrifying experiment in science, the …

2023年4月20日 · In 1972, John B. Calhoun built an utopia for mice. Every aspect of Universe 25, as this particular model was called, was designed to cater for the well-being of its rodent …

2023年10月18日 · John B Calhoun set about creating a series of experiments that would essentially cater to every need of rodents, and then track the effect on the population over …