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.

New York City’s three million rats are far more complex than just pests. A new study reveals they communicate using ...

When two nearly blind naked mole rats encounter each other in a dark subterranean tunnel, it could be a friendly meeting or a moment of potential bloodshed between strangers. The creatures chirp to ...

(CNN)-- Rats can be taught to play hide and seek -- and they squeal with joy when they win, scientists have found. Both wild and domesticated animals have been known to play, but neuroscientists from ...