Breed of working dog developed in Germany from traditional herding and farm dogs. A strongly built, long-bodied dog, it stands 23–25 in. (58–64 cm) high and weighs 75–95 lbs (34–43 kg). Its coat is of coarse, medium-long outer hair and shorter, dense inner hair and ranges from white or pale gray to black; often it is gray and black or black and tan. Noted for intelligence, alertness, and loyalty, it is used as a guide for the blind, as a watchdog, and in police and military work.