I got my dog from a dedicated breeder specialized in German Shepherd working blood line. Zak is a male GS extremely intelligent, not agressive, use to spend time with family, and follows me all the time, just like he was worry about me. Moderate exercise, as much as I can, loyal and protective. Very affective with other animals, but sometimes he tried to establish himself as the alpha dog. I trained Zak on basic obidiobed.