Dr. Sarah Guess says purring is normal. She’s a veterinarian at Washington State University. She told me that cats purr when they’re content and when they’re stressed out. It can be a little confusing ...

There's plenty of things to love about cats, and purring is definitely one of them. Cat owners can always tell when their pet is happy from their low, contented hums. But do any other animals purr?

Cats are known for their soothing purrs, a sound that’s become synonymous with a happy cat. But did you know that a cat’s purr can mean more than just happiness? Keep reading to learn more about the ...