Koko the gorilla, who became famous for her use of sign language, died in her sleep at age 46 in her california preserve on june 19, 2018. When she passed away in june 2018 at age 46, the world didn't just lose a gorilla, it lost an ambassador for an entire species. The gorilla foundation is best known for conducting the longest interspecies communication study in history (almost 5 decades) and the only one involving gorillas
Why Koko the Gorilla, Who Mastered Sign Language, Mattered | National
Koko, the adored gorilla known for her sign language skills, has died at the age of 46
Koko rose to fame in the 1970s when an animal psychologist named francine penny patterson taught her.
Featured twice on the cover of national geographic magazine, koko led to major revelations about animal empathy and communication Koko, the western lowland gorilla that died in her sleep. Because gorillas — and all animals — do think and feel, and koko proved as much
