Study finds shared rhythmic patterns in human and great ape laughter

A study published in Nature has identified consistent rhythmic patterns in the laughter of humans and several species of great apes, including chimpanzees, gorillas, orangutans, and bonobos. The research suggests that these shared characteristics point to a long-standing evolution of primate vocal control.

The analysis focused on how different primates react when tickled. Researchers found that human children and various ape species produced laughter with similar spacing and timing in their vocalizations. The New York Times reported that these findings suggest a common evolutionary foundation for the rhythmic nature of laughing among great apes and humans.

Evolutionary findings

According to the report in Nature, the presence of these consistent patterns suggests that complex primate vocal control may have begun evolving roughly 15 million years ago. This timeline points to a period when common ancestors developed sophisticated ways to modulate sound. The study indicates that these acoustic structures have remained largely unchanged across diverse lineages, providing evidence for how early primates evolved the physical and neurological capabilities required for rhythmic communication.