"Hanabiko "Koko" (July 4, 1971 – June 19, 2018) was a female western lowland gorilla who was known for having learned a large number of hand signs from a modified version of American Sign Language (ASL)." Wiki
"Hanabiko "Koko" (July 4, 1971 – June 19, 2018) was a female western lowland gorilla who was known for having learned a large number of hand signs from a modified version of American Sign Language (ASL)." Wiki