In the symphony of life, sometimes it's the unexpected notes that bring the greatest joy. In the bustling fast-food joint, there sat this little boy. His face was glowing with delight as he munched on ...

This week on Humankind, a little girl was in fits of laughter thanks to an unlikely best friend, firefighters plucked a stranded kitten from disaster, there was a suspenseful rescue of a man who'd ...

Melanin Bee curves her spine like a stretching cat as she lets out a maniacal, forced laugh. The quick-fire pattern of manufactured giggles —“oh, hoo hoo hoo, eeh, ha ha ha”— soon ripples into genuine ...

NEW ZEALAND (KGO) -- Researchers call Parrots' laughter infectious. Scientists believe Kea Parrots in New Zealand have a play call, and they may be the first non-mammals to have their laugh recorded.

Funny best friends laughing cheerfully while standing together in a studio. Two happy young women enjoying themselves against a purple background. Female friends making memories together. Melanin Bee ...