I just ran across a news article reporting that some scientists have done some experiments and determined that dogs can understand human emotions.
Now I'll set aside the obvious question as to who thought they needed to waste money on this kind of project (anyone with a dog knows it has emotions and empathy), and instead I'll be content that it has simply proven the obvious.
Here's a short quote and a link to the original article.
Dogs Can Read Humans' Emotions
If you're a dog lover, you probably already know this...