(CNN)-- Scientists have discovered the remains of a rodent the size of a small car which used to forage the South American continent. The 1-ton creature is believed to have been about 3 meters in ...

A one-ton "fossil rat" has been discovered in South America, scientists announced today. The prehistoric, bull-size creature—the world's largest recorded rodent—has been identified from a ...

It would be an exterminator’s worst nightmare: A 1,545-pound rodent with a voracious appetite and big teeth. Resembling a guinea pig grown to the size of a buffalo, the animal lived millions of years ...

WASHINGTON A rodent the size of a buffalo? Researchers say they have found fossils for a 1,545-pound giant that thrived millions of years ago in a swampy South American forest. "Imagine a weird guinea ...