The closest thing to utopia the world has ever seen might have existed in a Maryland barn for a couple of years during the late 1960s: a complex built for rodents as part of a science experiment.

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 ...

In the 1960s and 70s, the American ethologist and behavioural researcher John B. Calhoun conducted an experiment with mice to better understand the effects of population density on behaviour.

The focus of the experiment was “what would happen now ... renowned behavioral researcher John B. Calhoun created what you might think of as a “Garden of Eden” for mice.

John Calhoun stood ... even these inhabitants would be dead. Calhoun wasn’t the survivor of a natural disaster or nuclear meltdown; rather, he was a researcher at the National Institute of Mental ...

The understanding of John B. Calhoun’s research that circulated in the 1960s and ... Calhoun’s project is often framed as an experiment in utopia building, something like a generous welfare state—one ...