Koko, the gorilla who mastered sign language and became a pop-culture phenomenon, will be laid to rest Saturday in a ceremony at an animal sanctuary in Northern California where she lived for decades.

Koko the gorilla dies: 'She taught me so much,' trainer says. Koko, the western lowland gorilla who learned sign language, died on Thursday. By Bill Hutchinson. June 21, 2018, 2:30 PM.

Koko, the western lowland gorilla who learned sign language and became a pop-culture phenomenon, died Thursday morning at the age of 46. Skip to content WTNH.com ...