It is an important component of traditional Chinese culture and represents one of the twelve zodiac animals. In the ancient Chinese calendar system of heavenly stems and earthly branches, each zodiac sign corresponds to a earthly branch, and the earthly branch corresponding to the rat is "zi", hence also known as "zi shu". In the legends of the twelve zodiac animals, the rat is known for its wit and agility. According to legend, when the Jade Emperor selected the zodiac animals, the rat, with its intelligence and wit, was the first to arrive at the Heavenly Palace and became the head of the zodiac. It embodies the agility and agility traits of mice. It is considered a symbol of wisdom and wealth because mice are good at accumulating food, symbolizing abundance and harvest. But sometimes it is also often associated with negative images.

Mouse is a general term for rodents in the order Rodentia and family Muridae. The body length of a mouse is about 17.5 centimeters, and its tail is shorter than its body length; Short and thick ears; The hind legs are thicker and longer than 33 millimeters. Due to its sharp pointed mouth and ability to make holes, it is also known as a mouse. Commonly found in residential areas, sewers, haystacks, farmland, vegetable gardens, graveyards, riverbanks, and other places. Its cave system is complex, with multiple and long branches, and it is most active at midnight. Rats are omnivorous and often steal crops. Due to the frequent biting of hard objects by mice, their vitality is also extremely strong. They not only engage in sexual theft and cause harm everywhere, but also spread diseases, posing a great threat to human life.

Muskrat, belonging to the rodent order Cricetidae, genus Muskrat, also known as muskrat. The muskrat has a body shape similar to a large mouse, with dense fur around its body, a brown black or chestnut yellow back, and a brown gray belly. The tail is brownish black in length, slightly flattened, with scaly skin on top and sparse brownish black mixed hair. Because it lives in water and is good at swimming, it is known as a water mouse or water rat.