Grizzly bears roam forests looking for bugs, berries, and other food to fuel their big bodies. Learn about these powerful herbivores and their habitats in Grizzly Bears.

Grizzly bears are known for their long claws and sharp teeth. But there's more to this bear than its bite. Learn how grizzlies use their size, sharp senses, and strength to rule North American forests.

The world’s first national park, Yellowstone is a symbol of nature’s enduring majesty and the paradigm of protected areas across the globe. But Yellowstone is constantly changing. How we understand and respond to events that are putting species under stress, say the authors of Yellowstone’s Wildlife in Transition, will determine the future of ecosystems that were millions of years in the making. With a foreword by the renowned naturalist E. O. Wilson, this is the most comprehensiv...