The mouse is a gnawing animal, that is, it has no roots, so its teeth keep growing, so it has to grind its teeth. . . Rats are omnivores, and they eat everything, even hard things, such as wood and leather, in order to grind their teeth. Basically, they can eat anything. Rats have a variety of foods, and they like to eat almost everything people eat. They are not afraid of sour, sweet, bitter and spicy, but their favorite foods are grain, melon seeds, peanuts and oil-squeezed foods. A mouse can eat about 9kg of grain a year. People like to eat, they generally eat, and sometimes they eat books stained with oil, and some mice can eat sesame oil.