Hybrid Vigor is a theory that describes the increased productivity and performance in crossbreeding dogs. Because there is a little mix in the gene pool when purebred dogs are bred, there are certain health issues that cannot be bred out due to their genetics. If you were to take a dog breed that has a history of blindness, and breed him with a dog that does not have that history, then you are diminishing the chances of the offspring becoming blind
There are many dogs that sit in shelters with the colors of a collie, the brains of a poodle, and the friendliness of a golden retriever that will be put down because they don’t meet the standards of their purebred cousins. Even though the genetics of a mixed breed dog can be unpredictable, odds are you will find a healthy loving companion at the same probability of buying a purebred.
Hybrids are not problem free. There are occasional issues in behavior, such as wolf/dog hybrids. Dogs like humans and wolfs don’t, thus creating an issue in personality and behavior. Dogs are all about accepting leadership and wolves are all about fighting for leadership because they’re used to pack-style living.
A breed isn’t a separate species, just specific traits and looks. I’ve had a purebred dogs before. In fact, I’ve had two. My family traveled far and wide to get said dogs. I was only 2 years old when my family decided to get out second purebred and they let me pick it out. I chose one that looked cute. That dog turned out to have numerous health complications right off that bat and ended up seriously sick for a good portion of its life. I’m not saying that my dog had complications because it was pure bred – I know that there are plenty of beautiful healthy pure bred dogs.
Many people however choose purebreds over mutts for social hierarchical reasons, and also many people are just purely misinformed. Purebreds are associated with wealth and social status. Mutts aren’t usually seen in the same light as purebred dogs. However, due to not being of a bloodline that was tainted by inbreeding, mutt dogs can be much more intelligent, healthy, and generally successful pets. However mutts can be of unpredictable temperament giving them a poor reputation. Any dog owner knows while, yes, you can just get landed with a rude dog, it is also common that it is you at fault.
So in other words there is no real difference between Mutts and Purebreds because there all good dogs. Its all in how you train and love that dog. All dogs are there to be your best friend and be there for you when you want them to be. But if you treat that dog like crap then its not going to want to help you and that is where the dogs go from being a great breed of dog to a terrible one. So your pure breeds and your mutts are all going to be different because of the way we raise them and people need to stop worrying about what type of dog they have and just raise it and love it the way it loves you.