are all dogs mutts. look at pitbulls, there are so many different blood lines i can't keep up with them. and pitbull is the best of all dogs [ my opinon]. but i love all dogs. the pit bull is my all time favorite. so don't get me roung. quite hattin on ridgebacks pitmix ok!!!!!!!!!!!!


Technically, yes all purebreds started out as mixed breeds. But they were created from generations and generations of selective breeding...not just from putting any two dogs together.

And by pit bulls I am assuming you are talking about the American pit bull terrier. Mutts? Hardly. The APBT has been a registered purebred since 1898.

Bloodlines have nothing to do with a dog being purebred or not. A bloodline, to put it simply, is sort of like a family tree of dogs...that are produced by a specific foundation dog or kennel. Take the "Jeep" and "Sorrells" bloodlines. The jeep bloodline was named after Garrett's Ch. Jeep, ROM. And Sorrells was named after Bert Sorrells. Both are different bloodlines, and are famous for their own unique traits... but they are both still purebred APBT lines.