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. A first-of-its-kind examination ...

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.

FILE - A rat leaves its burrow at a park in New York City on Sept. 17, 2015. ( AP Photo/Mary Altaffer, File) WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring, especially in ...

Rat infestation in many world cities appears to be soaring, especially in Washington, and a new study blames climate change, urbanization and other human actions. A first-of-its-kind examination ...

Based on individual trends within cities, Washington was by far the leader in rat increases, followed by San Francisco, Toronto, New York City and Amsterdam. NBC Universal, Inc. Rat infestation in ...

FILE - A rat leaves its burrow at a park in New York City on Sept. 17, 2015. ( AP Photo/Mary Altaffer, File) WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring ...

WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring, especially in Washington, and a new study blames climate change, urbanization and other human actions. A first-of-its-kind ...

A harrowing video showing dozens of rats freely scurrying around a hospital ward has surfaced online, sparking widespread ...