Inside the Tornado

Join tornado researcher Tim Samaras as he races to capture tornado data—from inside. Can he do it without becoming a statistic himself? See—and hear—for yourself >>

Lemurs in Peril

On the African island of Madagascar, these bug-eyed primates are disappearing as bush-meat hunters take aim and land developers destroy habitat. But primatologist Mireya Mayor is Out There, fighting for the last lemurs. Multimedia slide show >>

A Wildland Firefighter Speaks

Each summer wildland firefighters face oppressive conditions and sometimes even death. What keeps them coming back? See—and hear—for yourself >>