The Pug-Zu is from two Chinese breeds traditionally prized as house pets and companion dogs. The small-sized Shih-Tzu and Pug were long kept by upper classes and nobility as a luxurious indulgence. Nothing more was required of these dogs but to be cheerful and well-groomed ornaments, often seen in paintings and drawings with their masters and mistresses.
The Shih-Tzu is believed to be descended from mountain wolves, and thought to be a cross between the Pekingese and the Lhasa Apso. Both the Shih-Tzu and the Pug are brachycephalic dog breed, with round skulls, shortened muzzles and round, protruding eyes.
