The Cricetinae subfamily is the smallest subfamily of the Cricetidae family, including only the Palearctic (Eastern Hemisphere) hamsters, which are small rodents. There are about 60 genera, with 3 genera and 9 species in China. Short and thick body shape; Short tail; Cheek pouch; Most types of skulls have no obvious ridges; The skull does not significantly enlarge; Listening to bubbles; Molar chewing mask with conical tooth tips. It inhabits a wide range of environments, including grasslands, deserts, semi deserts, farmland, and alpine grasslands. No hibernation habit; All of them are terrestrial species, mainly engaged in cave living, living by digging caves, with complex cave systems and specialized warehouses for storing food; Strong adaptability. Mainly feeds on plants, but also on animal carcasses.