Old English Sheepdog is a large sized herding dog originating from the United Kingdom. It has a musculature built with moderate bone structure. Its gait is powerful and ground covering. It grows to a height up to 24 inches. Females are bit shorter than males. Their coat is thick and long. It helps to provide water resistance. Their appearance projects an expression of intelligence. It is protective, homely and affectionate. It gets aggressive towards strangers and takes time to gel up with other pets.