The Many Purposes of Purring

Purring is an intriguing sound to cat owners and researchers alike. As you know, this low-frequency humming sound is often a kitty's way of saying, "Wow, I'm so happy that you're petting me." Mother cats and kittens use it as a bonding communication, much like a baby cooing, particularly during nursing. However, higher-pitched, more urgent purring can be a hunger call. And because cats may also purr when experiencing distress or pain or even while giving birth, scientists believe the sound might be a way of easing pain or discomfort.