Further research into the first problem showed that during the Shang and Chou dynasties, a religious period during China's history, people worshiped snakes and birds rather than plants.
按楚戈的研究，商周在文化上是個宗教時期，人民祭祀蛇、鳥，不膜拜植物，因此表現在裝飾藝術上的，也都是動物圖案。