Research confirms a mountain lion that struggled to stand and walk had the fatal staggering disease. It’s the first case in North America.

Don’t mess with Death Valley. One man somehow lost his shoes in the hottest place on Earth, and it didn’t work out.

A river guide came across something she didn’t expect to see in the Yellowstone River earlier this week—a headless, pawless grizzly bear.

No one’s ever seen a boat strike a basking shark from the shark’s point of view, until now. Watch footage from a camera mounted on the shark.

Two contestants on a survival reality TV show admit to killing and eating a protected bird in New Zealand. Here are the details.

There was a “localized hydrothermal explosion” this morning at Yellowstone National Park. Watch the terrifying moment here.

Could this be some not-so-hisssterical joke? Some people say they’ve seen a missing venomous snake around town, and others say it’s a hoax.

Someone’s been stealing people’s shoes at a Michigan campground, particularly flip-flops and Crocs, and it isn’t the fashion police.

Officials have issued a warning to local Alaskans in Kodiak, there’s a bald eagle attacking people, and it’s not been pretty.

A 13-year-old boy was hiking with his father on Mount Carmel in Israel when he discovered an artifact that’s likely 1,800 years old.