Types of Bears - Bears (U.S. National Park Service)

Bear Encounter - Yellowstone National Park (U.S. National Park Service)

Grizzly Bears & the Endangered Species Act - Yellowstone National Park (U.S. National Park Service)

Black Bear

How to survive a bear attack -- or better yet, avoid one altogether

Grizzly Bears – Stehekin Heritage

Flathead National Forest - Outdoor Safety & Ethics

Bear Identification - Glacier Bay National Park & Preserve (U.S. National Park Service)

Grizzly bear, facts and photos

The Bear Necessities: Why Our Forests Need Bears - Nature Canada

Everything You Want to Know About Katmai National Park's Fat Bears

Which National Park Has the Most Bears in the United States? - A-Z Animals

Yellowstone's Grizzlies Wandering Farther from Home and Dying in Higher Numbers - Inside Climate News