A group of Yellowstone visitors have been criticized online after taking photos of a bear well within the recommended distance.

From the adorable but deadly pine marten to the massive sperm whale, get to know some of the amazing animals that call ...

Entombed at the Ashfall Fossil Beds State Historical Park, teeth from the rhino fossils were analyzed by researchers at the ...

A tourist from Seattle was arrested after venturing too close to Old Faithful in Yellowstone National Park.

"Thin out the gene pool." National Park Service scolds tourists over behavior near dangerous spring: 'Common sense is so rare ...

The EPA estimates that between 2007 and 2018 the rule has cut 500,000 tons of sulfur dioxide and 300,000 tons of nitrous ...

In a ruling that juggles ranching interests and grizzly bear conservation, a judge has ordered state and federal agencies ...

The animals were slowly killed by ash falling from the Yellowstone supervolcano, but it preserved their bodies and has ...