The Lemmings suicide thing is actually a myth, made up for views by some documentary crew who forced Lemmings off a cliff. I looked the source up a while ago and that is what I found as information. I hope we can restore their reputation so I keep telling people.

https://www.britannica.com/story/do-lemmings-really-commit-mass-suicide

Now what I do like is this:

When the concentration of lemmings becomes too high in one area, a large group will set out in search of a new home.

That‘s so fitting to our situation, in a way. Let‘s hope the fediverse is a good home.