Meet Koko, the gorilla who has learned to speak to us in sign language, and Gorilla Foundation co-founders, Drs. Penny Patterson and Ron Cohn. Learn how and why the Foundation has evolved from an interspecies communications research project into a world-wide conservation project. The Foundation is building a new gorilla preserve on Maui, Hawaii, to ensure the future of great apes (and interspecies communication) for generations to come. Learn more at http://www.Koko.org.