Beyond barking, our canine companions communicate with a fascinating range of noises, each telling its own story. Indeed, dogs are full of surprises, and the sounds they make are no exception.

Elephants do it. So do chickens and iguanas, parrots and cats, and, of course, dogs. In fact, African wild dogs "vote" this way. Sneeze, that is. We've all felt that little tickle in the nose that ...