These rats were so psychologically damaged that they refused to mate, even after being removed from the enclosure and placed in the company of ideal females. Any time they fed, they avoided other rats, often by waiting until many of them were sleeping. These were referred to as the “beautiful ones”, because they avoided other rats (and thus fighting), and they devoted their time to self-grooming. And yes, we’re still talking about rats.Īlso of interest was the emergence of a special category of male. As matters continued, most of them failed to care for their own young, many of them abandoning their young, leaving them to die. The females tended to become more masculine in their behavior, also becoming more aggressive and hyper-sexual. The behavior of the females also became concerning. They also tended to become hyper-sexual, with homosexuality becoming rampant. Among what’s concerning is that the males in the experiment tended to become hyper-aggressive, often fighting each other, even when there’s apparently nothing at stake. The fact is, there is noticeable behavioral sink in rats who are made to live in close proximity, unable to escape one another’s company. After all, large numbers of humans live in close proximity, today. And if there is carryover between the observed behavior of rats made to live in close proximity and human beings, there is a concern which is applicable to today, rather than in a hypothetical future time when human population is far greater. But to find that value, one would have to look at them in terms of the data that they actually provided. That’s not to say that there’s no value to be found in Calhoun’s experiments. And, wouldn’t you know it, it was the following decade that saw the production of the now popular Jaffe memo. While Malthusianism may have already been popular in the decades preceding Calhoun’s experiments, a popular misconception regarding them may have played a huge role in the movement’s further popularity. In a sense, the Universe 25 experiment came to be the “mouse utopia” experiment which fooled your parents and grandparents.Īs a case study concerning the National Socialists of Germany may prove, when any misconception becomes popular enough, tragedy is a potential outcome. Nonetheless, the consensus was that the experiments gave us a glimpse into the future of humanity if humanity’s numbers were to continue to grow without check, further feeding into the Malthusianism that was popular at the time. What’s more, the Universe 25 enclosure came nowhere close to capacity at the point when the colony failed. This becomes evident when considering the fact that the colony did not want for anything to eat or drink at any time during the experiment, as it was all provided by Calhoun. The purpose of the experiments was to observe behavioral sink in rats who were not able to escape one another’s company at any time. Calhoun’s experiments did not concern limited resources, nor did it concern overpopulation. In light of this, it’s easy to see why Calhoun’s experiments were interpreted to mean that consequences similar to what befell Universe 25 might also befall humanity, if humanity’s numbers were to continue to grow unchecked.īut there was a problem. This research came to be of particular public interest, as it came at a time when Malthusianism, the idea that the earth was nearing its limit for its ability to support humanity’s growing population, was widely accepted. As the experiment progressed, the mice descended into antisocial and violent behavior, and the colony ended up failing when the females failed to care for their young. The most famous of these enclosures was called “Universe 25”, which was notable for its capacity for housing upwards of 5000 mice. So it is when one attempts to thwart a perceived oncoming crisis, but ends up doing more harm than good.ĭecades ago, researcher John Calhoun set out to conduct a set of experiments which involved confining rats to enclosures, and observing them as they are continually provided with ample food, safety from predators, and allowing their populations to grow without interference. John Calhoun, pictured inside the Universe 25 enclosure.Įven with good intentions, what’s stupid is still stupid.
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