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 ...

Grin broke internet.

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, ...

She's still adorable!

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 ...

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 ...