Koko The Gorilla

First international celebrity gorilla

Koko, the western lowland gorilla that died in her sleep in 2018 at age 46, was renowned for her emotional depth and ability to communicate in sign language.
She became an international celebrity during the course of her life, with a vocabulary of more than 1,000 signs and the ability to understand 2,000 words of spoken English, according to The Gorilla Foundation.