Centipedes and millipedes seem interchangeable, but while one is harmless, the other has a painful bite and could be the sign of a bigger infestation.
Centipede Vs Millipede: Which Pest Is Invading Your Home

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Centipedes and millipedes seem interchangeable, but while one is harmless, the other has a painful bite and could be the sign of a bigger infestation.