The Yellowstone grizzly bear was removed from the Endangered Species List in 2007. Their population continues to grow, increasing by 4 to 7 percent a year, but conflicts remain.

Shane Moore has been documenting the natural world for nearly three decades, producing detailed studies of complex ecological problems around the world.

Before visiting Yellowstone National Park or "bear country" familiarize yourself with safety precautions in order to avoid bear encounters.

(Airs Sunday, September 13) NATURE's The Good, the Bad and the Grizzly looks at the grizzly bear's remarkable recovery and examines the controversy behind the conservation success story.

The NRDC has continued to push for greater protection for Yellowstone grizzlies, citing loss of habitat and food sources.

Segments from the NATURE episode "The Good, The Bad and the Grizzly" examine how human interaction with grizzlies has alternately endangered and restored the population, and how humans coexist with grizzlies today.

In this video-enhanced lesson, students will learn how human beings have interacted with and impacted the lives of grizzly bears in Yellowstone Park. (Grades 9-12)

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

In this lesson, students will study the history of the grizzly bear, its decline in population, and the effort made to bring it back from near extinction.

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