We have a beagle that we have adopted for about 2.5 years. He does get regular socialization with other dogs but with newer dogs he has a hard time warming up to them(growling, snapping somewhat, posturing).He seems to do it more with males rather than females. Is this just a coincidence with the males or is there some substance to that? He does normally after a few days or weeks eventually get over it. We are still working on that. Our main question pertaining to that is that we are looking to get another dog so would it be in our best interest to get a female to promote peace in the household?