Chimpanzees, gorillas, bonobos and orangutans show laughter…
Chimpanzees, gorillas, bonobos and orangutans show laughter-like vocalizations in response to physical contact such as wrestling, play chasing or tickling.
Chimpanzees, gorillas, bonobos and orangutans show laughter-like vocalizations in response to physical contact such as wrestling, play chasing or tickling.