The rhythmic patterns of laughter found in apes and humans reveal that complex primate vocal control might have started evolving 15 million years ago go.nature.com/4eO0lkT
go.nature.comOo oo, ha ha: why humans and great apes giggle alike when tickledThe rhythmic patterns of laughter found in apes and humans reveal that complex primate vocal control might have started evolving 15 million years ago.
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