Why do American Bullies, American Pit Bull Terriers, and American Staffordshire Terriers have shared Relatives?

Results including bully breeds can sometimes be a bit confusing, as these breeds are quite closely related.

It's quite common for mixed and single-breed American Pit Bull Terriers to have American Bully relatives and vice-versa. Despite being genetically distinct breeds, they share a close genetic history, as APBTs (among other breeds) were used as foundational breeds to develop the American Bully. We sometimes see American Bully relatives for APBTs and vice-versa when the APBTs in question were bred into a line of American Bullies.

You should also know that we consider the American Bully a "provisional" breed, mainly because of how recently it was created (the 1980s) and because it’s currently still on open studbook. Provisional means that we can return results for this breed, as you've seen, but certain diverse lines of AmBullies may return as the component breeds used to create those lines. This can make for some interesting results on their Relatives Finder!