The project aims to raise awareness and reduce collisions with hamsters, whose population has been dwindling.
The signs have been placed along a high-risk stretch of road in the eastern Lublin region where hamster casualties are frequent.
Lublin Landscape Parks spokeswoman Małgorzata Bielecka expressed surprise at the strong public reaction, saying: "Although similar signs were introduced for other species, such as hedgehogs and squirrels, none have sparked as much interest and emotion as those for the hamsters."
Radio Poland's Michał Owczarek has the story.
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