However, a puppy face could always do the trick. A Golden Retriever named Murphy flaunted his most popular trick, a sad dog face, to try to get to spend the night with his favorite girls in this ...

Dog lover Monica was crushed when she saw the face of one rescue dog at the end of their visit. And people online are just as upset. As a dog mom herself, Monica is keenly attuned to their emotions.

The coyote turns out to have the kind of face muscles famed for letting dogs (right) widen their eyes into the wistful puppy-dog look that captivate humans. Jouko van der Kruijssen/Connect Images ...