Highlights the life of the nurse who served on the battlefields of the Civil War and later founded the American Red Cross.

Looks at the qualities of sea lampreys and examines how they became an invasive species in the Great Lakes and other places in North America, how they cause problems in their new environments, and the ways that people have attempted to deal with them.

Explains how grizzly bears became endangered and describes successful efforts to help them survive and increase.

Examines the characteristics and habitat of the mountain gorilla, explaining why the animal is facing extinction and what efforts are being made to keep that from happening.

Introduces glaciers, including how they were formed, how they have affected geography over the years, and why receding glaciers are a global climate concern.

Describes what marine biologists do, where they work, the tools and equipment they use, and how to get into the profession.

Profiles the famous French artist best known for his portraits and his paintings such as "The Luncheon of the Boating Party" that depict people enjoying themselves.

Examines scientists and the steps they take to find out mysteries of the world.