By having sex.
They are not bred with any dog they are "Native dogs"
Chi's were bred to be small and boxer's were bred to be bigger. All dogs were bred for specific reasons. Chi's weren't bred to be guard dogs, or hunting dogs...they were bred as companion dogs...which means they were bred to sit on ones lap and be loved.
They were bred to be lap dogs
They were bred as companion dogs.
they were bred to be working dogs.
They were bred to be companion dogs.
The dog breeder bred bit bulls. I have bred dogs all my life. When a person has bred dogs, it often means they breed exclusively for a certain blood line.
The Sioux and Cheyenne were known to have bred dogs for their meat, and also had a taboo against eating wild dogs.
they were first bred as hunting dogs
they were first bred as companion dogs.
The animals bred from Peru are Hairless Dogs!
People have selectively bred dogs from wolves