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

Global warming is helping rats thrive in major cities around the world, with Washington DC seeing the fastest growth in rats ...

Recent study reveals rodents are multiplying especially in metropolises where temperatures are rising most rapidly.

Global warming is worsening droughts, making sea levels rise, and fueling deadly storms. Now scientists have a new problem to ...

WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring, especially in Washington, and a new study blames warming temperatures, urbanization and other human actions.

Ahead of Valentine’s Day, BetUS is hosting a contest where the jilted and betrayed can name a New York City street rat after their former flame. BetUS is hosting a contest where the jilted and ...

FILE - A rat leaves its burrow at a park in New York City on Sept. 17, 2015. ( AP Photo/Mary Altaffer, File) ...

also known as black rats—are a global species as well. They may have originated on the Indian subcontinent and adapted to human settlements millennia ago, when humans invented agriculture.

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