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Ralbat navigates by projecting out psychic waves into its environment. It senses the returning signals with a trio of sensitive structures on its head. It can differentiate between living things by feeling their thoughts, letting it avoid danger.

While living in pitch-black caverns, their eyes gradually grew shut and deprived them of vision. A Ralbat has the power to sense the emotions of people and Pokémon with the horns on its head.