Don Nardo

Explores the many contradictory theories about what caused the dinosaurs to become extinct.

Discusses the life of Walt Disney, including his early childhood, education, interests, the creation of Mickey Mouse, and the development of the Disney theme parks.

Discusses the daily life of ancient Romans including their families, homes, occupations, education, and methods of worship.

Describes different kinds of microorganisms, including bacteria, fungi, and algae, and both their harmful and beneficial effects, as well as efforts to prevent the harm that some germs cause.

Describes the geography, plants, animals, history, economy, language, sports, arts, religions, culture, and people of France.

Discusses Curtis's early life, how he first became interested in documenting Native American life, the pioneering photographs he took, and his legacy.

An account of the war between the United Nations allies and Iraq from Saddam's military buildup to the cease-fire.

Describes the characteristics of asteroids and comets and discusses their motion in the solar system and what happens when they cross paths with Earth.

Examines the formation and eruption of volcanoes, describes how they form the damage they cause, and discusses steps taken to predict eruptions and protect the surroundings.