sorry I couldn’t find anything on this. I have 2 cats. My cats are not allowed anywhere near my rats, but they (cats) seem fairly interested in what’s on the otherwise of the door. My cats have brought in mice before. I would NEVER want to put my rats in a stressful situation, and I’ve heard somewhere that rats can smell snakes, so would they feel threatened by a cat? I love my babies so much and I don’t want to scare the rats! Help!