Sly, a monkey with human capacities, is growing increasingly upset with his containment. All he wants is to be treated with respect.

A squirrel monkey defeats the competition and fulfills her dream of becoming an astronaut. Based on the true story of Miss Baker, one of the first animals to be launched into space in 1959.

Advancements in technology bring a chimpanzee's intelligence on par with humans, and he sets off to the moon to conduct research while yearning for his simpler life before he was augmented.

A Japanese primate sociologist's life falls apart in slow-motion as he struggles with research, tension in his marriage, and his declining health.

After a trial injection of an experimental drug into a group of monkeys, an observer watches the various participants’ unusual and often deadly responses.

An esteemed chimpanzee expert retires in her Connecticut hometown with an ape who was raised as a human.

A middle-aged woman leads a traveling circus act through the Midwest featuring 26 monkeys who climb into a bathtub and disappear and then reappear on her bus after the show. The impending death of one of the key monkeys causes her to wrestle with the meaning of life.

A teacher at an orangutan school develops intimate feelings for one of his students.

A group of American explorers and scientists in Africa, including two women, venture into the wild looking for gorillas. When one of the women goes missing, their native guides quit their jobs, and the men lead a slaughter of the gorillas, the other woman wonders if the first woman disappeared into the world of the gorillas by choice, to escape the confines of her life with men.

After his research proposal is unanimously rejected by the university board, a well-renowned college professor and his wife conduct an experimental study in the 1950s. The experiment, which gives a lab rat human consciousness through a robot body, becomes dangerous when a crucial factor goes unnoticed.