On the not-so-infrequent nights when I’m plagued by insomnia, no combination of melatonin, weighted blankets, and white noise will do. Just one cure for my affliction exists: my cat Calvin, lying atop ...

Is it a coffee machine gurgling its last drops? Is it a muffled phone vibrating on a couch? Is it a small helicopter trying to take off very politely? No, it’s Sylvester the cat, purring away after ...

We all know that cats purr when they are content, and purring usually sounds pretty much the same no matter which cat is purring. Lilly and Lucy are sisters who love snuggling up with their mom, Zina.

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?