Great Ape Laughter Sheds Light on Human Speech Origins
Summary: Laughter is a universal vocal behaviour shared by all living great apes—chimpanzees, bonobos, gorillas, orangutans—and by humans. New comparative research has tracked a deep evolutionary timeline for this behaviour and identified a 15‑million‑year‑old neurobiological signature hidden in the rhythm of laughter. The study reveals a conserved rhythmic structure across species that likely provided key … Read more