Heteromyidae

Heteromyidae is a family of rodents comprised by kangaroo rats, kangaroo mice, and pocket mice. Most heteromyids live in complex burrows within the deserts and grasslands of western North America, though species within the genera Heteromys and Liomys are also found in forests and their range extends down as far as northern South America. They feed mostly on seeds and other plant parts, which they carry in their fur-lined cheek pouches to their burrows.