Study suggests apes and humans shared same laugh for 15 million years KTENRhythm and timing in laughter reveal that human vocal plasticity falls on a hominid continuum | Communications Biology NatureTo Reveal the Rhythmic Roots of Laughter, Just Tickle an Ape The New York TimesScientists Tickled Gorillas And Found A 15-Million-Year-Old Clue To How Humans Learned Speech ForbesWhat an ape’s laugh can teach us about human language National Geographic
