Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness. As a result, the Wilderness Act passed in 1964.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
A personal story of one family's dramatic effort to hold onto their family farm in Iowa as massive foreclosures sweep the nation in the 1990s.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.