@ifixcoinops incoming info dump (you walked right into my special interest hehehe)
1) Can Rabbits and Cats Co-Exist?
I can't speak to this cuz I don't have cats, but I can say that my buns are entirely unbothered by my large dog. The quickly learn that the worst he's gonna do is give them a lil sniff and now they completely ignore him.
I think it'll mostly depend on the personalities of the animals in question.
But in any case, never allow them together unsupervised.