Q: My cat makes an odd crying sound right before he's about to throw up. This can't be something that they do in nature. Why does he do it? A: Ah, the joys of cat behavior. Mine will do this, too.

If you’re like most cat parents, you’d give almost anything to keep your favorite feline happy. So the sight of even a single tear glistening in your cat’s eye can be jarring. But can cats cry? Do ...