What is the name of the gorilla that knows sign language?

Koko's handler taught her how to speak sign language. If you want some more fun facts about Koko, ill tell you right here:

.Her first cat was a little grey tabby that she chose because it didnt have a tail either, so she thought it was a baby.

. When that cat got run over, she got another one and named it the same thing.

Have fun!