Koko, a six-year-old gorilla, is the subject of a controversial Stanford University research project conducted by Penny Patterson. A perceptive simian who communicates with humans via sign language, Koko knows more than 300 signs and can combine them to make new hybrid descriptions. Director Schroeder and cinematographer Almendros present a visual argument exposing the contradictions that arise when scientific experiments are used to graph human behavior...

In a magical place called the Congo, in the beautiful forests and jungles of Virunga National Park, lives a young female mountain gorilla named Miza. She was just like any other baby gorilla, riding on her mother's back, playing, taking naps. Then, one day, when Miza and her mother were out searching for food, Miza's mother disappeared, leaving her baby alone and frightened. Miza's father, a fierce silverback named Kabirizi and the leader of Virunga's...

"Priscilla is obsessed with gorillas. But when her ape-like behavior gets her sent to the Thinking Corner, Priscilla wonders if she is really channeling her inner gorilla, or just being a troublemaker"--

A zoologist's portrait of Dr. Dian Fossey's remarkable mountain gorilla camp documents the story of the controversial unraveling of the Rwandan facility after Fossey's murder and the author's contributions to tracking mountain gorillas through hostile terrain, confronting aggressive silverbacks and rehabilitating orphaned baby gorillas.

Mystery gorillas: Join primatologist Mireya Mayor at the heart of the jungle to explore the great apes' secret world. Search for the great apes: Join Dian Fossey and Biruté Galdikas to better understand the mountain gorilla and the elusive orangutan.