Have you ever seen your cat's ears move around, or your kitty run for no particular reason? You may think they're "hearing things," and you may be right. However, the sounds aren't in your cat's head.

Have you ever seen your cat's ears move around, or your kitty run for no particular reason? You may think they're "hearing things," and you may be right. However, the sounds aren't in your cat's head.

Add Yahoo as a preferred source to see more of our stories on Google. Hearing, along with the sense of smell is vital to wolves who rely on it when hunting. Wolves can hear sounds as far away as 10 ...