Mole rats are giant rodents that were engineered by the United States before the Great War. Despite the fact that they have the same name, two species can be distinguished. The mole rats found in New California are mostly covered with fur and come from moles, and those from the East Coast and the Mojave Wasteland are furless and come from naked mole rats which come mostly from governmental experiments rather than the area, as mole rats are not native to the United States.