Why are there so many cows on the shellfish receptacle reading comprehension

Shellfish storage is the state of Yunnan used to store sea shells of bronze containers, similar to today's children's "save money jar", which stores the sea shells are treasures from exotic places, in a particular social environment as the state of Yunnan's "special equivalents In the specific social environment, it served as the "special equivalent" of Yunnan, playing the role of money. The most common decorative image on the shellfish storage vessel is the cow.

In 1956, the "Seal of the King of Yunnan" was unearthed at Shizhai Mountain in Jinning, Yunnan Province, confirming the real existence of the "Kingdom of Yunnan" as recorded by Sima Qian in the "Records of the Grand Historian". From the 1950s to the present, tens of thousands of Yunnan bronzes have been unearthed, reproducing the history and culture of Yunnan more than 2,000 years ago in the language of intuitive and vivid bronze art. As one of the most important animals in Yunnan, the ox is almost everywhere, and its image can be seen on agricultural implements, weapons, tools, decorations, and household items.