More genetically diverse and generally healthier than pedigrees. Often live longer than purebred dogs.

Do pedigree dogs live longer?

638-643. Thanks to modern veterinary science and an increased understanding of their needs, the majority of our dogs now live long and happy lives. On average, crossbred dogs live about one year longer than purebred dogs.

Do mongrels or pedigrees live longer?

Mongrels lived longer than most pedigree dogs, but a few pure breeds did outlive the mongrels. These included Jack Russells (13.6 yrs), whippets (14.3) and miniature poodles (14.8). Nearly 16% of deaths were attributed to cancer, twice as many as to heart disease.