Thomomyinae

Thomomyinae is a subfamily of rodents in the family Geomyidae. This subfamily includes the pocket gophers, a group of fossorial mammals found in North America. Pocket gophers are characterized by their large, fur-lined cheek pouches, which they use to carry food and nesting material. They are also known for their powerful forelimbs and large claws, which are adapted for digging.

There are several genera within the Thomomyinae subfamily, including Thomomys, Geomys, and Cratogeomys. Each genus contains multiple species, and their geographic distributions vary across North America. Pocket gophers are primarily herbivorous, feeding on roots, tubers, and other underground plant parts. They are solitary animals, except during the mating season.

Pocket gophers play an important role in their ecosystems. Their burrowing activities can aerate the soil and improve water infiltration. They can also influence plant community structure by selectively consuming certain plant species. However, their extensive burrowing can sometimes be considered a nuisance by humans, particularly in agricultural areas. Research on Thomomyinae focuses on their evolutionary relationships, behavioral ecology, and adaptations to their subterranean lifestyle. Conservation status varies among species, with some facing threats due to habitat loss and fragmentation.