What do house mice look like in native Eurasian populations?

In their native Eurasian populations, house mice (Mus musculus) are characterized by tawny-brown upperparts and white bellies. They possess short, soft fur and shorter, bicoloured tails.1

Physically, these mice have thin whiskers, narrow hind feet, and short, sharp claws. Their prominent, thinly furred ears and long, slender tails appear nearly naked. Generally, they have a small, slender body measuring 6 to 11 cm (2.4 to 4.3 inches) in length, with a tail length that typically equals their body length. They also possess a distinctive, strong, musky odour.1