I have an 9 week old prairie dog female and I want to get another but one is from a breeder and one from a pet store, two females the same age. Does anyone know how I would introduce them and if they would get along at first? The pet store won't let me bing my female in and th book I have only tells about introducing a pup to a new adult? Any info from experienced prairie dog owners would be greatly appreciated! Also per store told me if I buy another they will only live each other and not me! Is this true?