They may be adorable, but puppies can get up to their fair share of mischief. One look at their cute little face might be enough to make you cave, but sometimes, owners just have to be the bad guy.

A cat has taken the internet by storm with his hilariously sad expressions over being "excluded from dinner." Bertie constantly puts on his best pout while begging for food, sorrowfully staring up at ...

Dogs have a talent for looking heartbreakingly mournful at the exact moment their humans are laughing, celebrating or simply feeling good. That contrast can feel jarring, as if your joy is somehow ...

WASHINGTON – Creases and furrows on someone's face may put a wrinkle in our ability to properly judge his or her emotions, a new study suggests. Subscribe to read this story ad-free Get unlimited ...

Crying as an expression of emotion appears to be uniquely human behavior. Other animals may tear up because of irritants in their eyes, but only humans shed tears at times of extreme sadness or joy.