Moleworm

The Moleworm is an animal found in the Reign of Giants DLC. Moleworms live underground in a hole called a burrow, and move around underground similar to the Depths Worm. They are lithovores and will seek out and consume minerals left on the ground, as well as any ashes they come across. When the player digs up their burrow with a Shovel, the burrow is destroyed and a couple minerals will spawn.