Only humans laugh, and only the chimpanzee family does anything similar; even that isn’t like normal laughter, but the kind of laughter you express when tickled (which is subjectively qualitatively different from laughter at a joke).
Only humans laugh, and only the chimpanzee family does anything similar; even that isn’t like normal laughter, but the kind of laughter you express when tickled (which is subjectively qualitatively different from laughter at a joke).