Though only one mixed breed can compete with the average life span of a purebred rat terrier ... papijack is a cross between the papillon and the Jack Russell terrier. Bostillon Rank: 10th ...

Now healthy and in foster care, this 8-year-old Jack Russell-rat terrier mix is described as a "perfect little doll baby" and gets along well with others. Adopt Monroe (ID No. 1477070) spayed ...