Why Do Cats Purr?

Purring is the most common sound cats make. Yet we know less about it than meowing, chirping, chattering, hissing, and growling.

Yes, cats purr when they're content. When yours is curled up in the sun, you may hear a gentle rumble as he breathes in and out. Touch him, and you feel a little quiver. It's almost as if he's sending out waves of calm.

But you shouldn't assume that sound means your cat is in a good mood. Or that it's the only time you'll hear it. Cats purr to communicate other emotions and needs, too.

What if you pick your cat up and hold him? Does he purr because he likes it -- or because he's nervous?

Although you'll never know exactly what yours is saying when he purrs, research from animal experts, along with considering the situation, lets you make an informed guess.

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