The German Shepherd Dog is a breed of medium-sized dog that originated in Germany. German Shepherds are a relatively new breed of dog, whose origins date to 1899. As part of the Herding group, the German Shepherd is a working dog developed originally for herding sheep. Because of their strength, intelligence and abilities in obedience training they are often employed in police and military roles, in forces around the world.

German Shepherds can be a variety of colours, the most common of which are the tan/black and red/black varieties. Both varieties have black masks and black body markings which can range from a classic "saddle" to an over-all "blanket." Rarer colour variations include the sable, all-black, all-white, liver, and blue varieties.

German Shepherds are highly active dogs, and described in breed standards as self-assured. The breed is marked by a willingness to learn and an eagerness to have a purpose. Shepherds have a loyal nature and bond well with people they know. However, they can become over-protective of their family and territory, especially if not socialized correctly.