Apes and humans have been sharing a laugh for 15 million years

Apes and humans have been sharing a laugh for 15 million years Phys.org Rhythm and timing in laughter reveal that human vocal plasticity falls on a hominid continuum | Communications Biology Nature To Reveal the Rhythmic Roots of Laughter, Just Tickle an Ape The New York Times Scientists Tickled Gorillas And Found A 15-Million-Year-Old Clue To How Humans Learned Speech Forbes Humans And Apes Have Laughed The Same Way For Millions of Years, Study Suggests ScienceAlert