Jun 21, 2018
							Koko, the Gorilla Who Used Sign Language, Is Dead at 46
							Koko, the western lowland gorilla who signed her way into people's hearts, died peacefully in her sleep at the age of 46. Arguably the best-known gorilla in captivity, Koko died yesterday morning (June 20), according to a statement issued by The Gorilla Foundation (TGF), the nonprofit gorilla conservation organization responsible...