After Berkeley biologist Tyrone Hayes said that a widely used herbicide was harmful, its maker launched an attack on him.

Orlando’s suburbs become an accidental testing ground.

How a once-lauded psychiatrist became a prolific prescriber of painkillers in one of Virginia’s poorest and most isolated counties.

A love story.

How a substandard abortion provider stays in business.

After being extinct for 70 million years, the coelacanth came back to life.

The rise of an expensive, experimental stem-cell treatment in China and the medical tourism it attracts.

How the ski town of the super-rich is responding to global warming.

A physician reports on his own catastrophic injury.

One man’s quest to have a healthy leg amputated.

It comes from the soil of the desert Southwest. Inhaled, it can cause incurable, even fatal illness. And, thanks to global warming, valley fever is spreading fast.

How a self-taught doctor from Delhi cornered the black market in kidneys, building one of the world’s most lucrative organ-trading rings, until it all came crashing down.

For centuries, a little town in Belgium has been treating the mentally ill. Why are its medieval methods so successful?

Investigating the murder of a Costa Rican conservationist.

Unraveling a lucrative crime ring.

Space is only getting weirder.

A cave in Russia, a long-lost tip of a pinkie bone, and the discovery of a new kind of human being.

“I’ve tried therapy, drugs, and booze. Here’s what helps.”

Why a cow being airlifted by a helicopter says so much about the Swiss economy.

The tale of the only art exhibit in space.

On Romanian dictator Nicolae Ceausescu’s lust for blood-sport.

The price we pay for cheap meat.

“If I were a bitch, I’d be in love with Biff Truesdale. Biff is perfect. He’s friendly, good-looking, rich, famous, and in excellent physical condition. He almost never drools.”

A battle against an invasive breed of ants has begun in Texas. It also might be over already.