Mr. Wallace's Line
Through the ocean just east of Borneo runs an invisible line that separates the world of tigers from the world of kangaroos. Getting across that line may have seen what made our ancestors truly human.
by Jared Diamond
Beyond the Soapsuds Universe
The universe is full of patterns, but how did it get that way?
The Gulf War Within
When soldiers returning from the war complained of mysterious illness, the Pentagon called it stress. But the real culprit, it appears, was deadly chemistry.
The People of the Bog
Two thousand years ago the residents of northwest Europe had the puzzling habit of killing certain men, women, and children and tossing the bodies into bogs. Today their mummies are casting light on the murky times in which they lived.