Jack is a four+ year-old Jack Russell RatTerrier mix that weighs approximately 16 lbs. Guardian Angel Pet Rescue originally rescued Jack from a small shelter in Louisiana. He came to us with heartworms which we treated. Jack was adopted out about a year and a half ago but recently returned for urinating in the house. We took him to the vet, had him treated for a urinary infection and he is good as new. Jack is fine with other dogs and people. He would make a great low-maintenance companion for a mature person or couple.