Meet Koko: A female gorilla who knows how to use sign language! Or does she?

Here is a presentation about a debate between skeptics and Dr. Patterson. A Dr who defied the odds and taught a Female gorilla Koko how to sign. Did she really you ask? Well, some argue that their just complex tricks but here in my presentation is what I thought about all of this. The story of Koko a female Gorilla who can use sign language to communicate!