Residents urge city and state leaders to take stronger action as they confront rodents damaging cars, invading yards and creating what some describe as a growing health hazard.
Philadelphia is one of the rattiest cities -- but is not as ratty as it once was.
New York City officials say they are seeing a rise in sicknesses from rat urine -- and if left untreated, it can cause kidney failure and liver damage.
Chicago has taken its title as the "rattiest city" to a whole new level.
Move over pizza rat. Video of a new, hungry, New York City rodent is going viral.
"They're running up and down our property, down our driveways, into our backyards making holes," said one neighbor.