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 ...

Eugene was in a family's home as a foster and was returned to the Best Friends Pet Resource Center in Northwest Arkansas ...

Add Yahoo as a preferred source to see more of our stories on Google. Don't worry, they're friends.Charles Sykes/Invision/AP Images The internet is home to some of the best, most hilarious photos, ...