Millions are mourning a gorilla, and that’s a good sign for humanity. Koko, a western lowland gorilla, died in her sleep at age 46 this week. Koko started learning a version of American Sign Language ...

Koko the gorilla, famous for learning how to speak using sign language with her human trainer, has died at the age of 46. The rest of this article is behind a paywall. Please sign in or subscribe to ...

I was saddened to hear about the death of Koko, the western lowland gorilla who recently passed away at age 46, who became famous when she was able to master the American Sign Language and communicate ...

Millions are mourning a gorilla, and that’s a good sign for humanity. Koko, a western lowland gorilla, died in her sleep at age 46 this week. Koko started learning a version of American Sign Language ...