I went to my vet and asked them while I was theregetting my puppy shots what they told me was that there were know difference! I did research and all i've seen was a bunch of different looking dogs and my pit bull on one hand look like a staffie but when I went to the pit site he looked like a couple of others! I was just told it was just another name people call them to lessen the slack of negativity towards the breed, but I wondering with both i've read it's where the 2 breeds originated from! also what they were breed for,but there are some physical similarities! I don't mean to ruffle any feathers i'm just asking a courious question. Just to clarify I didn't get my dog (obviously) from a breeder he was a rescue ! Any helpful information would be great thank you!