Evolutionary origins of laughter

Topic

The evolutionary origins of laughter trace back to ancestral nonhuman primate displays, serving as a vital social mechanism for bonding, play, and survival. Research indicates that tickle-induced vocalizations in great apes and humans share a common phylogenetic origin, functioning as a signal of safety and cooperative intent. Over evolutionary time, this behavior transitioned from a physical play signal into a complex cognitive and emotional tool for social cohesion in humans.