Bison jams are not uncommon in Yellowstone given their population at the park has ranged from 3,500 to nearly 6,000, the ...

Rangers at the country’s oldest national park plan to open major roadways and entrances to the site starting Friday as part ...

Bison in Yellowstone National Park may seem calm, but approaching them is extremely dangerous. Learn why these massive ...

Yellowstone bison now breed as one interlinked population. Genetic studies show strong gene flow across all bison herds.

Former president Joe Biden spoke about the importance of social security in Chicago on April 15, marking his first speech since leaving the White House. A diver on an expedition off the coast of Cabo ...

As peak season in many US national parks begins, families heading outdoors during spring break might need to pack their ...

In this week’s "Photowalks," photographer and journalist Jefferson Graham heads to Yellowstone country in Cody, Wyoming, to ...

Yellowstone's Junction Butte wolf pack failed in a recent attempt to kill a bison, but the pack appears to be thriving again after the death of its former alpha female, Wolf 907F.

A dismayed Chris Servheen is raising the alarm about what’s become of federal scientists who have kept watch over the Greater ...

Twelve million years ago, a massive herd of rhinos gathered at a watering hole in what is now northeastern Nebraska. But when ...

Colorado Parks and Wildlife, the agency that brought the continent's largest cervid to North Park in 1978, insists it has ...

Unlike their ranched cousins, which are mainly the result of 20th-century attempts to cross bison with cattle, the Yellowstone animals are wild and genetically pure, descendants of the original ...