In the Neolithic age, Dawenkou Culture. It is 25 cm high. It was unearthed at Dawenkou site in Tai'an, Shandong Province in 1959. Water heater. The body is replaced by three bag shaped feet, one of which is equipped with a wide band on the back. The shape and design of this device is unique. This kind of dog with feet instead of abdomen is rare in cultural relics of the same period.