Check out the mouse utopia experiments. These were a series of experiments that started in the 1950s, in which a researcher set up a habitat for mice or rats that provided everything they need and had no dangers or weather. In every case, the mice or rats thrived until they reached a certain population density, then societal pathologies started to develop. Eventually, the colonies died off. In no case did the rodents ever run out of food or water; their habitat could support significantly more animals than the top population.
Some of the pathologies are very similar to human societal pathologies that we see concentrated in the cities: abortion, metrosexuals, gangs, withdrawal from social contact, etc.
I saw a really good YouTube video about the mouse utopia experiments. It gave a lot of insight into what is happening to our cities.
I did see that a while back, last year IIRC. Stands to reason. I actually have a BA in Psych (it was the only Major I could get and still do all the Pre Med Requirements). I vividly remember hearing lectures about experiments where they put two rats in a cage with a shock floor and a wheel to turn it off. When the shock comes on one would think the nearest rat would just turn it off but they don’t. They fight with the other rat until a winner is decided and then the winner MAKES THE OTHER RAT WAIT UNTIL HE IS ALLOWED TO TURN IT OFF. Some times it is hard to extrapolate animal behavior to human behavior but this one is pretty much an eye opener.
Ethologist John B. Calhoun’s “behavioral sink”...