As the weather gets colder and food becomes more scarce, rats and mice are likely to come into homes to scavenge for food and ...

John Bumpass Calhoun’s life’s work — studying rats and mice — was grounded here in Baltimore at the Johns Hopkins University.

In the autumn and winter months, when the temperature outside plummets, rodents seek shelter from the cold. And it’s common for the critters to take refuge in vehicles even if they’re parked ...