A smile can be so contagious. You know how hard it is not to yawn after seeing someone else do it, so just imagine keeping a straight face when someone is smiling hard right at you. When someone is ...

Sometimes smiling can be tough. Sometimes it's raining outside, you're running on three hours of sleep, you can't find your keys, your commute was heinous, Starbucks is out of pumpkin spice lattes, ...

If you thought laughter was just a human trait, you couldn’t be more wrong. Many animals have their own unique ways of expressing joy. If you’ve ever watched a dog with its tongue flopping out or seen ...

The internet is home to some of the best, most hilarious photos, especially of animals. These funny animal pictures taken at the perfect time are guaranteed to make you smile. Some of the most recent ...

He couldn't contain his excitement!

New research confirms Darwin's claim that animals express emotions like humans. May 11, 2010 — -- You come home after work and the family pooch greets you, grinning ear to ear. That's a true ...