Where Does this Breed Originate From? A mixed breed dog is one that is the offspring of of two different purebred dogs. Purebred dogs have a known ancestry or pedigree. On the other hand, “mutts” are dogs born to parents of an unknown ancestry. A Shih Tzu Terrier Mix is a dog where one parent is a Shih Tzu and the second parent could be any of the many breeds of dogs in the ter … [Read more...]