Humor has always been subjective. Where some people prefer the physical comedy of Jim Carrey, others may find the dry approach of Albert Brooks preferable. Babies, of course, are not big on subtlety.

A toddler with an infectious giggle is spreading joy to millions of people. In a viral TikTok video, 11-month-old Remi is heard laughing hysterically as her great-grandmother chops veggies. The ...

A psychologist explains the evolutionary and psychological roots of laughter, and what an infant’s giggles teach us about how adults bond.