There is a special sequence when these animals show up to represent each year. 鼠shǔ (mouse) is the first one. Why? There is a story. Long long ago, the God in heaven wanted to choose 12 animals to be in charge of each year. So there was a competition among all the animals. The first 12 animals who walked through the gate of heaven will become immortal. Here is the video of the story:
Now let's see how to read, write and use the character for mouse, 鼠shǔ .