Dogs are very expressive animals, but they can't talk, and that leaves us with a lot of questions. Without the powers of Dr. Doolittle, we are forced to make inferences about what our canine companions are thinking and feeling. Luckily, Havahart Wireless has made this helpful infographic to give us a general gist of what our pets are trying to tell us. It may not be a perfect science, but it's a start.