I thought this was interesting. A study showed that untrained volunteers could read the expressions on the faces of dogs fairly accurately. They were shown photos of dogs with a variety of emotions. They were able to determine the right emotion easily. I think there must be something natural and universal about certain expressions across all beings. Do you think you know your dog's emotions by looking at their face? [url]http://www.telegraph.co.uk/lifestyle/pets/9934977/Scientists-prove-you-really-can-tell-what-your-dog-is-feeling-by-looking-at-its-face.html[/url]