Rat nyingnying started growing rapidly in Central Asia from Iran to Russia, but now has spread throughout the world. His body is small with a weight of 50-100 grams, the ears are wide, the fur is fine and the tail is longer than his body. Besides liking cereals, these mice in the outer areas also like grass seeds, insects, and any food it finds. The rats in the room like warm places and nest near their food. These mice can also adapt at extreme temperatures and have been found lodged in meat freezers.
Rat nyingnying mulai berkembang pesat di Asia Tengah dari Iran ke Rusia, namun kini telah menyebar ke seluruh dunia. Tubuhnya kecil dengan berat 50-100 gram, telinganya lebar, bulunya halus dan ekornya lebih panjang dari tubuhnya. Selain menyukai sereal, tikus-tikus ini di daerah luar juga seperti bibit rumput, serangga, dan makanan yang ditemukannya. Tikus di ruangan seperti tempat dan sarang hangat di dekat makanan mereka. Tikus ini juga bisa beradaptasi pada suhu ekstrim dan telah ditemukan bersarang di freezer daging.