Koko lives at the Gorilla Foundation in Redwood City, California. She lives with her trainer Francine Patterson.

Francine claims that the gorilla knows more than 2000 English words and communicates with people using 1,000 “Gorilla Sign Language” indications. Koko had a kitten and loved her very much. But when the kitten passed away the gorilla’s heart was devastated and she indicated “Sleep Cat” with signs.

On her 44th birthday, her trainer decided to make a surprise for Koko and prepared a unique gift. When Koko opened the box she found 2 little kittens there.