Thomomys bottae sanctidiegi
Unlike the cheeks of hamsters and squirrels, a Pocket Gopher’s cheeks are outside of their mouths and lined with fur. They serve as all-purpose carry bags. The Valley Pocket Gopher might use its cheeks to transport nesting materials underground for later eating. As they tunnel, Pocket Gophers act like miniature plows, turning over and loosening the soil.
The pocket in "Pocket Gopher" refers to the fur-lined pouch in each of the gopher's cheeks.
What’s for Lunch:
Root vegetables and greens
Tunnels in coastal sage scrub and grassy areas