Lives about one yard underground where it feeds on plant roots. It sometimes appears above ground.
It prefers dark places. It spends most of its time underground, though it may pop up in caves.
Its skin is very thin. If it is exposed to light, its blood heats up, causing it to grow weak.
If a DIGLETT DIGS through a field, it leaves the soil perfectly tilled and ideal for planting crops.
It digs under ground and chews on tree roots, sticking its head out only when the sun isn't bright.
— Pokédex entries (via PokeAPI)