The 20-pound nutria, native to South America, has somehow managed to establish a population in the Suisun Marsh.

"The streets of Chicago are a playground for rats," Orkin's John Kane said. Los Angeles and New York also topped the list.

One town in Ohio ranks among the top 10 rattiest cities in the U.S., according to a report from Orkin, a national pest ...

Disease ridden rat-like creatures with bright orange teeth are spreading panic in California as their population explodes.

While enormous rats might be many people's nightmare, these huge rodents could be a key weapon in the battle against the trading of illegal wildlife goods. African giant pouched rats can be ...

Disease ridden rat-like creatures with bright orange teeth are spreading panic in California as their population explodes. Nearly 1,000 nutria – an up to 4ft vector of tuberculosis – have been ...

In the past, African giant pouched rats have learned to detect explosives and the tuberculosis-causing pathogen. Now, a team of researchers have trained these rats to pick up the scent of pangolin ...

"Rats are mostly nocturnal so you may not see them when you're in your garden, but there are some signs to look out for: tunnels or 'runs', droppings, gnawed wood, or teeth marks in crops." ...

"Norway rats prefer to live in burrows in the ground," according to the bureau. "They are excellent climbers and swimmers and most active at night. They have very hard teeth and can chew through ...