Well, as you know I am not too informed on these breeds and that is why I joined this forum and might possible own a "Pit Bull". Like some of you say that there might be dog aggression with the Pit Bull and a bulldog, it might change my mind on getting another dog. What is DA? CoolHandJean, so you are saying that thost bloodline of Chinaman and Jeep have more chances of dog aggression because they are game breed dogs? Game bred means that the dog is the offspring of at least one game parent. Proven gameness involves testing/matching/rolling/fighting the dog. Just because you get a dog that has Chinaman or Jeep somewhere in it's pedigree does not make it a gamebred dog (we had a long discussion on this already, lol) See this thread for that info: http://www.pitbull-chat.com/showthread.php?t=10480 Does anyone on the forum introduce a Pit Bull puppy to their new home with another bully dog that have been there for a few years. I have an 11 year old JRT/pit bull mix (female) and a 3 yr old APBT (male). So, it can be done. I NEVER leave them alone together. Your best chance for success is with a mixed sex, altered pair of dogs. Two same sex unaltered dogs is asking for trouble, and I would not recommend it for a newbie to the breed. Do you think intorducing a Pit Bull is different then introducing a cocker to my English Bulldog? I feel that I have introduced the cocker to my bulldog pretty well. They Never fought and they go every where together and even sleep together. Only because the Cocker is less likely to be dog aggressive than another bulldog would be. The whole introduction process is the same across breeds of dogs, but with DA (dog aggressive) dogs, you need to be prepared to intervene and separate them if necessary. If they don't get along, you may never be able to have them live together, and you will need to crate and rotate (have the dog's outside-the-crate time be the opposite of the other dog's outside-the-crate time). The major difference is that a fight between a Cocker and a bulldog will likely end in the Cocker giving up the fight and wanting to retreat (whether or not the bulldog will let that happen is another story). Bulldog vs bulldog, neither one will give up, and you either break up the fight or have one or even two dead dogs. Also, kim, there are dogs who are DA but only to certain dogs. There are also dogs that are DA but it doesn't show up until years later, and there is not a warning before it shows up. And when a bulldog fights another dog, there isn't too much posturing going on, as with other breeds. There isn't a big show of growling and hair-raising. The point is not to get the opponent to back down, the point of a bulldog fight is to fight.