This Dog has already been adopted! Keep looking for your perfect match on our available Dogs page. Jack Male (Altered) — Date of Birth: 09/03/2004 (20 years old (Senior)) German Shepherd Dog Mix Jack is a German Shepherd Mix Pup. He is about 12 weeks old, is Black and Tan, and weighs about 15 pounds. He came in as a stray to the shelter. Available Dogs