Yes. Yes cats can live with dogs and yes a dog can live with cats. I have 2 young cats that have never lived with a dog. I recently invited a large dog into my life and was surprised how quickly my 2 cats adjusted to the situation. The dog had lived with cats before so there was never a threat from him. My cats did take some time to get used to him, but it has been over a month now and they all get along beautifully. I am very impressed.