Video-Enhanced Lesson

Using segments from NATURE's "The Wolf that Changed America" students will explore 19th century attitudes toward wolves in the western United States. (Grades 9-12)

These video segments from NATURE's "The Wolf that Changed America" explore 19th century attitudes toward wolves in the western United States.

Learn more about grizzly bears with these useful web sites and books.

As the grizzly bears of Yellowstone settle into their winter hibernation, the debate concerning their future will remain decidedly active.

The Endangered Species Act helped save Yellowstone's grizzly bears from extinction, but that doesn't mean the great bears are out of the woods.

Although the gray wolf remains an endangered -- and therefore protected -- species, wolves nevertheless face the same risks as any other animal species.