As smart as they are loyal. The German Shepherd Dog, often referred to simply as the German Shepherd or GSD, is one of the most recognizable and popular dog breeds in the world. Originally developed in Germany in the late 19th and early 20th centuries, German Shepherds were primarily bred for herding and protecting sheep. Today, they are known for their versatility, intelligence, loyalty, and bravery, making them excellent working dogs, family companions, and service animals.