Its ear is hexagonal in shape. Compressed underground, its body is as hard as steel.
They were discovered a hundred years ago in an earthquake fissure. Inside each one is an energy core.
The hexagonal-shaped hole is its ear. It has a tendency to walk in the direction the sound is coming from.
Born deep within the ground, it compares itself with similar species, such as Geodude and Carbink, to settle which has the hardest body.
The hexagonal cavity is its ear. It walks in the direction of sounds it hears, but if the sounds cease, it panics and topples over.
— Pokédex entries (via PokeAPI)