German Shepherd Behavior - The reference to temperament of your dog is a combination of drives, individual behavior and unique characteristics that are inherited from the each parent and the grand parents. - It's absolutely true and most often overlooked. Temperament of the German Shepherd dog is inherited by genetics. If one parent is weak it will show in their offspring and will continue until the weak trade is complimented by a more desired trait. Temperament is inherited, not developed.