People predicting the end of world generally make those predictions without scientific evidence to support them. So when an animal-behavior researcher ran experiments in the 1960s that described ...

While the name of John Bumpass Calhoun might not be familiar to everyone these days, he and his life’s work — studying rats and mice — were grounded here in Baltimore at the Johns Hopkins University ...

Just about every student of animal behavior has studied the work of Dr. John Calhoun, famously or infamously known for his rodent apartment complexes like “Mouse Universe 25,” which led to his concept ...

In the 1970s, behavioral researcher John B. Calhoun created what looked like paradise—for mice. There was no hunger, no predators, and no disease. Yet within a few years, every mouse was dead. The ...

Rats are as bad as human beings in some ways. In the latest Journal of Wildlife Management, Dr. John B. Calhoun, of Johns Hopkins, discusses one such aspect of the rat world: the troubles which ...

In June 1972, the Royal Society of Medicine in London hosted a symposium called “Man in His Place”. It featured an eclectic group of speakers, including Jacob Bronowski, whose acclaimed 13-part BBC ...

In 1968, Dr John B Calhoun, a behavioural researcher at the US National Institute of Mental Health (NIMH), began a groundbreaking study that may hold chilling warnings for humanity's future. Nicknamed ...