The Infamous Universe 25 Experiment That Turned Into A Mouse Apocalypse Is Shown On Video

The innards of the famed Universe 25 experiment, which saw a mouse utopia transform into a mouse apocalypse, are revealed in a hidden gem posted on YouTube.

The Earth’s human population has grown during the last few hundred years, from an estimated one billion in 1804 to seven billion in 2017. As a result, concerns have been made that our population may outstrip our ability to produce food, resulting in widespread famine.

When resources grew few, some, such as the Malthusians, believed that the population would “control” itself by dying in enormous numbers until a sustainable population could be produced. As it turns out, innovations in farming, changes in agricultural practices, and new farming equipment have provided enough food to feed 10 billion people, but how that food is allocated has resulted in global famines and starvation. May change as we consume our resources and the climate issue intensifies, but for now, we have always been able to create more food than we require, even if we lack the will or ability to give it to those who need it.

While everyone was concerned about a scarcity of resources, one behavioral researcher in the 1970s wanted to know what would happen to society if all of our appetites and needs were satisfied. According to his research, the solution is a lot of cannibalism followed by the apocalypse.

John B Calhoun set out to design a series of trials that would essentially attend to every rodent demand and then track the population’s response over time. The most famous of the tests was dramatically dubbed Universe 25.

He used four breeding couples of mice in this experiment and placed them inside a “utopia.” The environment was created to eliminate issues that may otherwise lead to death in the wild. They had unlimited food thanks to 16 food hoppers connected by tunnels that could feed up to 25 mice at once and water bottles above. Nesting material was provided. The temperature was kept at 68°F (20°C), which is the ideal mouse temperature for those who aren’t mice. The mice were chosen for their health and received from a breeding colony at the National Institutes of Health. Extreme efforts were taken to prevent any sickness from entering the universe.

Furthermore, there were no predators present in the utopia, which makes sense. It’s not every day that something is characterized as a “utopia, but there were also lions there picking us off one by one.”

The experiment began, and as expected, the mice used the time they would have spent seeking food and shelter to engage in excessive sexual activity. The population quadrupled every 55 days as the mice crowded towards the most attractive region within the pen, where access to the food tunnels was easy.

When the population reached 620, the population doubled every 145 days, indicating that the mouse society was having issues. The mice were divided into groups, and those unable to find a place in these groups were left with nowhere to go.

Universe 25- John Calhoun’s NIMH experiment

Calhoun noted in 1972, “In the usual sequence of events in a natural ecological system, somewhat more young survive to maturity than are required to replace their dying or senescent established colleagues.” “Those who cannot find social niches emigrate.”

The “excess” could not emigrate because there were no other options. The mice left without a social position to play — there are only so many head-mouse roles, and the utopia didn’t require a Ratatouille-style cook – grew alienated.

“Males who failed withdrew physically and psychologically, becoming very inert and forming enormous pools near the center of the universe’s floor. They no longer initiated engagement with their established friends, and their behavior no longer elicited male territorial attack, “read the article. “However, due to attacks by other withdrawn males, they developed multiple wounds and scar tissue.”

During attacks, the withdrawn males would remain motionless and unresponsive. They would later assault others in the same manner. These lonely men’s female counterparts retreated as well. Some mice spent their days grooming themselves, refusing to breed and never fighting. Because of this, they had fantastic fur coats and were termed the “pretty ones,” which was a little unsettling.

Outsiders weren’t the only ones who noticed a change in mouse behavior. The “alpha male” mice were exceedingly aggressive, attacking others for no reason other than personal gain, and raped both males and females regularly. Cannibalism amongst mice was occasionally the result of violent encounters.

Despite – or perhaps because of – their every need was met, moms would abandon their children or forget about them, leaving them to fend for themselves. Males who would ordinarily play this job were banished to different parts of the utopia, and the mother mice were violent against trespassers to their nests. As a result of their rage, the moms began to murder their children regularly. In some areas of paradise, infant mortality rates surpassed 90%.

Color noted in a YouTube video, “The last 1,000 animals born never learned to develop social behaviors.” “They never learned to be aggressive, which is an important skill. There was no mating since they never learned to court. There were no offspring since there was no mating.”

This occurred during the first phase of the “utopia’s” demise. Whatever young mice survived the attacks from their moms and others would grow up around these odd mouse behaviors, which Calhoun dubbed the “second death.” As a result, they never learned typical mouse habits, and many of them exhibited little or no interest in mating, preferring instead to eat and preen by themselves.

“We called [them] the beautiful ones since they were not engaging in any stressful activities and were solely paying attention to themselves,” Calhoun said in a video posted to YouTube.

The population peaked at 2,200 mice, well below the “universe’s” current 3,000-mouse limit, and then began to drop. Many of the mice refused to reproduce and retreated to the enclosure’s top decks. In contrast, others established vicious gangs below, which would regularly attack and cannibalize other mice and their own. The colony was soon extinct because of the low birth rate, significant infant mortality, and violence. Nevertheless, food was plentiful, and their every need was met during the mouse apocalypse.

“From that point on, reproduction ended completely, and the creatures simply aged and died,” Calhoun explained. He referred to the reason for the collapse as a “behavioral sink.”

John B. Calhoun Film 7.1 [edited], (NIMH, 1970-1972)

“The most complicated behaviors encompass the interrelated set of courtship, maternal care, territorial defense, and hierarchical intragroup and intergroup social organization for an animal as simple as a mouse,” he found.

“When behaviors relevant to these functions do not mature, social structure and reproduction do not emerge. All members of the population, like those in my study, will age and die at some point. The species will become extinct.”

He believed the mouse experiment could be applied to humans, and he foresaw a day when God forbid, all of our wants would be supplied.

“There is no logical reason why a similar chain of events should not also result in species extinction in a complex animal like man. Only violence and disruption of social order can result if chances for role fulfillment fall far short of demand by individuals capable of filling roles and expecting to do so.”

The experiment and its findings were highly popular, resonating with people’s emotions about urban congestion leading to “moral degeneration” (though, of course, this ignores so many factors such as poverty and prejudice).

However, others have now questioned whether the experiment could be extended so easily to humans — and whether it demonstrated what we thought it did in the first place.

According to medical historian Edmund Ramsden, the end of the mouse utopia could have resulted “not from density, but from excessive social engagement.” “Calhoun’s rats had not all gone insane. Those who were able to master space lived rather ordinary lives.”

Furthermore, the experiment design has been criticized for producing a scenario in which the more aggressive mice could control the territory and isolate everyone else, rather than an overpopulation problem. It’s possible that, like with food production in the real world, the issue wasn’t a lack of resources but rather how those resources are managed.



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