Rats seem to emit ultrasonic squeaks of happiness just because they are in the company of another rat. Using newly developed miniature microphones that were placed on rats’ noses, scientists have been ...

An estimated three million rats live in the city, which is a little over one-third of the human population. A new study found rats alter their vocalizations depending on the environment and level of ...

SALEM, Ore. (KOIN) — Have you ever actually seen a rat hole? Kellie Nightingale has. She and her Salem neighbors said they see dozens of rats and rat holes up and down a stream bank which runs between ...

Mice and rats vocalize. To us, many of the sounds they make are ultrasonic—at too high a frequency to hear. But if we slow the calls down, they sound like squeaks. And not all squeaks are the same.

Rats may carry out certain activities just for the fun of it, says new research on the animals' behavior. In a study published in the journal Science researchers found that rats were capable of not ...

The next time you come across a rat darting furtively for cover, consider this: It might just want to have a playful game of hide-and-seek. A group of neuroscientists in Germany spent several weeks ...

To be a pest is to be underestimated. Sure, pests are annoying, but being a pest also requires a surprising amount of coordination and communication. That’s what researchers recently discovered about ...