“The deer mouse (genus Peromyscus) is the most abundant mammal in North America and it occupies almost every type of terrestrial habitat,” according to the paper’s authors. Yes, you read tha ...

The deer mouse, believed to be the most common mammal in North America, has a very different take on family values than its evolutionary sibling, the oldfield mouse. Oldfield mice are monogamous.

The tail hair is similarly brown and white. The deer mouse ranges throughout North America, although it's more common in the ...