Move over exterminators, the Tree House Humane Society in Chicago has a purr-fect solution for the city’s rat problem. Meet the Cats at Work program, where 1,000 fearless feral felines are released to roam the streets, scaring off pests just by their mere presence. Forget rat-proof garbage bins; it’s time for a “meow-some” long-term and green solution!

Shelter releases 1,000 feral cats on to Chicago streets to combat rat crisis