What kind of mice are Tom and Jerry?

There are obvious incisors on the inside of the maxillary incisors in mice. The coat color varies greatly, with the back hair from taupe to dark gray and the belly hair from pure white to grayish yellow. The backs of the forefoot and hindfoot are dark brown or grayish white. The color above the tail hair is darker than the color below.

Introduction:

Because of Jerry's quaint characteristics, he often succeeds in making Tom the cat perform many funny scenes to make the audience laugh. Tom is often at a loss, full of embarrassing things (but sometimes he gets hurt himself), and looks like a pair of difficult enemies.

But before you know it, they are already good friends, and no one can live without anyone. Even sometimes Tom thinks that Jerry is seriously injured, dying or dead, and he will panic and want to save Jerry at once. Jerry sometimes takes advantage of this.