DEAR JOAN: My cat is very loving, but she never purrs.
DEAR CYNTHIA: Some cats purr away, while others either can’t or have such a soft purr that we don’t hear it. As animal experts aren’t 100 percent sure how or why cats purr — they have theories — it’s hard to know why some don’t.
It’s believed that cats make the purring sound by vibrating their vocal cords when breathing in and out. That’s why the purr can be steady, with no obvious breaks for a breath.
Some cats are incapable of making the sound because something