Living dossier
great apes
A living Archypedia dossier connecting source-backed reporting, context and new developments about great apes.
Evidence timeline
Coverage as it developed
Newest first. Every entry retains its own source ledger and publication history.
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Great apes and humans share rhythmic laughter patterns dating back 15 million
A study identifying shared rhythmic structures in the laughter of humans and great apes suggests our vocal control evolved gradually over millions of years.
Science · 535 words -
Great ape laughter reveals 15-million-year-old roots of human speech
University of Warwick researchers found that rhythmic patterns in great ape laughter provide a vocal fossil for the evolution of human vocal control.
Science · 585 words -
Ape and human laughter study finds shared rhythmic origins in tickle tests
A study of humans and great apes has found that rhythmic laughter is an ancient, shared trait that evolved 15 million years ago. Researchers used tickle-induced vocalizations to uncover the biological roots of our vocal control.
Science · 726 words