As part of an ongoing 12-year study of California ground squirrels at Briones ... a cousin of field mice. This suggests squirrels are much more opportunistic in their diets than previously ...

Unlike most mice, the California mouse mates with a single partner. The male defends the nest and raises the young to increase the chances of survival. As you might expect, the cactus mouse ...

They commonly chow on insects, but about half their food consists of Pacific tree frogs and California mice. Tadpoles and young frogs hunt invertebrates both day and night, adding to their ...

The X contains more genes related to brain function than does any other chromosome. “The X chromosome may be a treasure trove ...

Mice of the genus Peromyscus range from monogamous partners ... Wendy Saltzman, a behavioral neuroendocrinologist at the University of California, Riverside, investigates whether male P. californicus ...