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 ...

Beneath the steaming geysers and bubbling mud pots of Yellowstone National Park lies one of the world's most closely watched volcanic systems. Now a team of geoscientists has uncovered new evidence ...

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

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 ...

Are you looking for the top U.S. national parks, ranked from stunning to must-visit? Read on for a list of the best U.S. national parks you can visit this season.

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

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

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

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

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

Scientists believe that 8.7 million species of animals in the world have so far been classified. And, despite their best efforts, it’s estimated that there are still 5 million species to be described.