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 ...

Yes, animals laugh – if you know when to look. As a wildlife photographer, I often capture those rare and genuine moments when animals seem to be laughing – moments full of character, emotion, and ...

Human laughter may trace its evolutionary beginnings to vocalizations made during play. This type of "laughing" is found in many mammals and even in some birds. GOP senator reacts to Trump calling ...

For many years, psychologists and behavioral biologists agreed that laughter was a unique emotional expression found only in humans. However, as the study of animal emotions expanded this idea was ...