Our cats for the most part are actually afraid of our rats and jump down if they get up on the couch and we're holding a rat. But I captured a cute picture of Sonny with one of our female rats Marseilles. They were checking each other out. And neither got upset or freaked out, but I didn't have them together too long. Never sure if the rat will get scared and defensive and strike out or the cat will bat at the rat, so we keep them separated for the most part.