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