What do prairie dogs use to make dens?

Prairie dogs use soil and grass to construct their dens, which are elaborate systems of tunnels and chambers. They dig into the ground using their strong forelimbs and sharp claws, creating a network that can extend several feet underground. The dens provide shelter from predators and harsh weather conditions, and they also serve as a social hub for the colony. Additionally, prairie dogs may line their burrows with dried grasses and plant materials for insulation.