The world was struck with grief once again when the beloved gorilla, Koko, passed away at the age of 46. Koko's ability to use sign ...

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...

When a celebrity passes away, fans around the world take to social media to share their condolences and their favorite songs, movies, or e...

Among the millions mourning the death of Robin Williams on Monday was Koko, a gorilla who communicates in sign language. Williams met Koko...