You can now watch “Arctic Ascent with Alex Honnold” in full and for free. Get some context and watch it here.

The White Line is a nightmare for most of us, but for some mountain bikers, it’s a dare. Watch some people give it a try.

Mountain lion vs. coyotes. A photographer had an incredible scene play out before her, and yes, she got pics.

Freestyle kayakers do some amazing stunts, like flips, rolls, and other indescribable things. Here’s Mark Kearney doing some of those things.

A couple of backpackers faced off with a grizzly bear in Glacier National Park. They were prepared, and it showed.

A young angler got the catch of his life—a gator in Tennessee. Wildlife officials thought it was a joke. Here’s what happened.

It’s International Day of Forests, but we don’t need a holiday to celebrate the incredible U.S. forests. Here are five to visit in 2024.

This New York bridge gets more interesting in the spring, once a breeding pair of peregrine falcons come to brood and raise chicks.

A reservoir in Texas is infested with zebras (not the kind you might think), and the Texas Parks and Wildlife Department says it’s no good.

“Hazy skies” aren’t supposed to come to mind when you think of America’s national parks. Here are the top 10 most polluted national parks.