I live in a small city in the US, where it’s grass everywhere. There’s lots of rabbits, but why aren’t there more? They eat grass, and there’s clearly more grass than they can eat at their current population size. There’s no significant predators to speak of, I don’t think. They breed legendarily quickly, there’s even an expression about it. So if food isn’t a constraint, predators aren’t a constraint, what is the constraint? I would think they should just increase population until we don’t have to cut our grass anymore.
In: Biology
Rabbits reproduce so much because they’re born small, weak and dumb as hell. They’re kind of a self-limiting population in the wild.
That said, I once lived on an island with no natural rabbit predators, and sure enough – [bunny hijinks ensued](https://www.nbcnews.com/news/amp/ncna429186). They even have [an Instagram](https://www.instagram.com/langleyhops/)
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