Grizzly bear Tim enjoys his tree enrichment at Brookfield Zoo Chicago. More than 900 Balsam fir trees used during Brookfield Zoo Chicago’s Holiday Magic event are repurposed every year as mulch, ...

On the edge of a wintry cottonwood stand near the banks of Two Medicine River, Rusty Tatsey, a Blackfeet elder, makes the ...

Creel and his colleagues have been researching wild dogs and lions in two Zambian national parks for more than a decade.

Yellowstone is home to nearly 5,000 bison, which must contend with wolves in the winter, and wolves and grizzly bears during ...

America’s First National Park Yellowstone National Park holds the title of being America's first national park, and it was ...