Why? They from the same strain but breed for different reason. You don't see mans seperatin the labs breed into seperate breeds. They look different n breed different its crazy. Just cause one blue it still come from a apbt. Long as they carrie that gene to make them that color. But come from people breeding for it. But still its the same to me. Somone educate man please they just making crazy decision fast. Wha animal is pure if not being breed to two or more breed that animal its self is not pure. What make it pure is the period of life it accomplish goal and breed for make it a breed snd makes it one of pure breed. If a person try to now then they consider it a mutt. I guess life its crazy. So further explain this or correct me and show other your opinion.