Partners of witches? Souls of the dead? Suckers of blood? Knee-deep in guano in a rank Texas cave with the man who knows the shocking truth about bats

The world wants them to stop, but it's the trade of their grandfathers. With a harpoon and their wits, they ply the waters of the Caribbean in search of their 40-ton prey. And when they're gone, it all goes with them.

You, too, can own a share of Henry VIII's sunken flatware—for $50,000. That is, if you cut a deal with Barry Clifford, the Pirate Prince to some, the Underwater Antichrist to others.

They are virulent, microscopic menaces, diseases so deadly that they could swiftly destroy our nation's livestock and send the economy into a free fall—which leaves the government with the daunting task of keeping them from our shores. It's a battle being waged across the globe, and in the command center on tiny Plum Island, the folks in the lab coats are on red alert.

Dams break and walls of water sweep away cars like matchboxes. Time to call off the shaman.

These are desperate times for the world's largest cats, and for the people who are killing them. Can Siberia save itself, or will it soon be a land of no more tigers? In search of Panthera tigris altaica, icon of a culture that assumes the worst for itself and always finds that assumption confirmed.

Six young men set out on a dead-calm sea to seek their fortunes. Suddenly, they were hit by the worst gale in a century, and there wasn’t even time to shout.

Amid the panic over abductions and evil ETs, a gentle voice is heard. But do Steven Greer and his pilgrims have the candlepower to score that intergalactic high five?

There’s nothing funny about motion sickness. Really. I mean it.

As a young climber, David Roberts believed in the greatness of risk. Then death came suddenly, too easily. And it came again and again.

A consideration of hunting

Snowboarder Jeremy Jones seeks out the biggest and most remote lines in the latest film by Teton Gravity Research, Further. It premiers in the fall of 2012.