X

Koko the gorilla, who mastered sign language, dies at 46

The famous kitten-loving gorilla who communicated through sign language has died.

Erin Carson Former Senior Writer
Erin Carson covered internet culture, online dating and the weird ways tech and science are changing your life.
Expertise Erin has been a tech reporter for almost 10 years. Her reporting has taken her from the Johnson Space Center to San Diego Comic-Con's famous Hall H. Credentials
  • She has a master's degree in journalism from Syracuse University.
Erin Carson
pk-flower-adult.jpg

Koko was longtime friends with Penny Patterson, who taught her sign language. 

The Gorilla Foundation

Koko, a gorilla known for having mastered sign language, has died.

The gorilla was 46 and died in her sleep, The Gorilla Foundation said in a statement Wednesday.

"Koko touched the lives of millions as an ambassador for all gorillas and an icon for interspecies communication and empathy. She was beloved and will be deeply missed," the statement said. 

Koko, a western lowland gorilla, was born at the San Francisco Zoo. She has been featured in documentaries and appeared on the cover of National Geographic. 

Notably, Koko also formed a relationship with a kitten. The pair inspired a book called Koko's Kitten