Great apes really do giggle when tickled, new research says – just like you and me.
Researchers from the University of Hannover in Germany recorded the tickle-induced vocalizations from three human infants and 21 infant and juvenile orangutans, gorillas, chimpanzees and bonobos and analyzed this acoustic data to find similarities and differences among the five species.  [...]

Tags: evolution, genetics, great apes, laughter