Designed for college and advanced high school students, this 25-minute DVD examines the interactions of biological and social factors during the Irish Potato Famine, which started in 1845 as a result of a potato disease epidemic. Included is a brief instructor's guide that offers an overview of the video material, sample questions to stimulate class discussion, a glossary, illustrations of two key concepts, and a list of literature references. Teaching Objectives: -- Demonstrate the importance of food production in daily life, and to show what can happen when something goes wrong. -- Explain the "disease pyramid"-the concept that diseases often result from interactions among a susceptible host, a virulent pathogen, and a favorable environment over a proper amount of time. -- Introduce the structures and life cycle of a plant pathogenic fungus. -- Impart an understanding of social and political factors that affect the production and distribution of food.