Rat infestation in many world cities appears to be soaring, especially in the nation's capital, and a new study blames ...

A new study finds that rat infestation in many of the world’s cities appears to be soaring, especially in Washington ...

Simmering urban temperatures are bad for humans. It's another story for rats, according to new research -- especially in ...

A warmer climate can also extend growing seasons, providing rats more food as well as vegetation to hide in, said Michael ...

Researchers have not had good figures on rats. Because of the way they live and hide, they are not as easily counted as other critters, so this is one of the first attempts to quantify them.

Rats are in many ways better adapted to cities ... Central Park might provide less food and fewer places for rodents to hide from predators like hawks and coyotes. Grist thanks its sponsors.