It’s an experiment that was conducted to see what would happen when mice were given what people supposed would be a mice utopia. Things did not go well.
FYI, it's very important to note that these are mice, not rats, which have drastically different social dynamics. I don't know if this experiment has been repeated with rats, (and I rather hope not) but I wouldn't be surprised to see a very different outcome.
Humans are very different animals, though, and we should probably be cautious about projecting these results onto society.
Being social is being social. While I do think we’re not rats, lol, I do think we are both bound by the same laws of social dynamics. That’s why I’m seeing the similarities.