A suspected fatal grizzly attack in Glacier National Park is thought to have happened the same day two brothers were mauled by a grizzly in

Wolf and grizzly bear sightings are fairly common in Yellowstone. But scenes such as these, illustrating the life-or-death struggle for sustenance among apex predators, are rarely documented in such detail.

A new clip out of Yellowstone offers a rare look at the brutal reality of kleptoparasitism in the backcountry. Watch a pack of wolves challenge a grizzly for a seat at the dinner table—that is, until "king of the carcass" griz shows up.

A day after two brothers were mauled by a grizzly in Yellowstone, a dimwitted tourist was spotted five feet from a bear taking video on his phone.

The grizzly is a keystone species, shaping ecosystems in ways that ripple across landscapes. Its absence changed California.”