I currently have all three in my house, and it varies as to rescues/CUR runs that are going on. Mousers: My ferrets are extremely adept mousers, 100x better than my cats - who would rather watch a bug outside for 2hours than pay any attention to a roden trunning past them. Of my ferrets the females are more hyper/aggressive/assertive and they are the best mousers. In a terrible accident they also did away with three gerbils (one of my cats, no joke, liked to sit in the cage with the gerbils - never hurt them but did damage the cage during the night and they got out and my little female ferret got to them....) Dogs and Ferrets: I have grow up with a family who bred Kerry Blue Terriers, who have a strong prey drive and currently have a Siberian Husky (strong prey drive - she actually ended up eating one of the already dead gerbils that the ferret was trying to hide from me). Sile, the Husky, LOVES the ferrets. She cries and cries if they are in the cage and she wants to play. She wrestles with them, sometimes carries them like a mother would by their scruffs. Granted she has grown up with ferrets, but I still say (as I told the JRT poster in a private email) it depends on the DOG not the BREED. My ferrets have also been visiting at two houses with dogs - my bf's parents and my parents - both dogs are scared of the ferrets (schnauzer and golden) and it's kind of funny to see a 90lb golden running terrified from two little 2lb ferrets. Sile has played a little rough from time to time but the ferrets put her in her place with a bloody lip and bloody nose. She has also sprained her leg sliding across the kitchen floor while chasing them. The ferrets, however, have never been injured and love their Husky. Some people think I am nuts keeping this group of animals together and out all at the same time but what can I say? at our house it's get along or get out and so far everyone has gotten along:) Rachael and everyone:) ----------------------------------------------------------------- Rachael M. Kelly | It is a matter of complete indifference, whether Marietta, Georgia | something is true, while it is of utmost importance | whether it is believed to be true. | -Nietzsche [Posted in FML issue 2485]