A couple of months ago, this wasn't a term I was familiar with. Designer breed dogs are breeds mixed for a specific purpose such as to enhance the physical appearance of a dog. They are from purebred dogs with known ancestry. Knowing the designer breed's ancestry is also what makes them different from mutts. Some common examples are Cockapoos, Maltipoos, Labradoodle and Golden Doodles. [IMG]http://www.dogbreedinfo.com/images18/GoldendoodleDebbiesDoodleRanchMaggieXmas.JPG[/IMG] Photo Courtesy by DogBreedInfo.com Some of them are extremely cute. One of the advantages of having a mixed breed is that whatever genetic diseases the pure bred may have had, it's reduced dramatically simply because of the mixed gene pool. However, I still prefer shelter dogs since I'm an adoption advocate.