Nature

The Appalachian Trail Mystery

Paul D. Paur left behind all his worldly possessions and entered the Appalachian Trail in early June. Concerns about his mental health surfaced alongside reports from fellow hikers that Paur is...

The Freedivers Who Eavesdrop on Whales

It's not easy to swim with sperm whales: they're hard to find, hard to reach without adequate diving experience, and they just might swallow you up if you get too close. But how else are we going to...

The Day We Set the Colorado River Free

It's been more than 50 years since the Colorado River regularly reached the sea. But this spring, the U.S. and Mexico let the water storm through its natural delta for a grand experiment in...

500 Pounds of Man-Eating Stealth

In the Sundarbans region of India and Bangladesh, some of the world's last wild tigers roam free and ravenous. An expedition to film these elusive predators is tricky business. You may not see them,...

The Climate-Change Revolution WILL Be Televised

Harrison Ford, Jessica Alba, Arnold Schwarzenegger, Mark Bittman and other mega-celebs lend a hand to the new Showtime series, Years of Living Dangerously—where Hollywood meets wake-up call.

The Madness of Modern-Day Poaching

South African Johnny Olivier was just looking for an easy job to pay the bills. But after agreeing to help a buddy collect lion bones for an international wildlife-trafficking kingpin, he found...

Free Lolita!

Should a captive killer whale be listed under the Endangered Species Act?