I just got my dog about a week ago from animal control. They told me that she was a bull terrier mix. Now to me she doesn't look like it, she looks more pit bullish. But now that I have thought about it some and looked at pictures she looks very much like an american bulldog. I actually found an american bulldog that is identical to her. So what is the difference between am.bull dogs and pit bulls? ie weight, height etc. Thanks in advance.