The Lacandons, last surviving descendants of Mayas, live in rain forest of southern Mexico.

Examines male and female roles in society and presents a scientific study of the known biological facts about sex differences in humans.

This program looks at hormonal changes during puberty, and the socially originated attitudes leading to differences between the sexes.

An exploration of the traditional art of healing as practiced in China.

A look at the eating habits of Canadians; food and nutrition, the so-called "Well-balanced diet" and problems of overeating are analyzed in this examination of the dangers of abundance

A retrospective look at the summer 1972 World Conference on the Human Environment.

The Nature of Things presents Cities Are For People, originally scheduled for February 19. It deals with new thinking in urban planning to make cities more livable.

A look at the migratory habits of birds and animals, with recent findings in animal studies reinforced with fascinating film footage of many species in their natural habitats.

This half-hour film depicts obvious absurdities, in a subjective interpretation of The Limits to Growth, a 1970 MIT computer study forecasting economic, social and political collapse by no later than 2020.

A comprehensive examination of the form of pollution fast becoming public enemy number one in North America: garbage.