On the Cover
The Scinax littoreus lives in the rain forests of Brazil, which Darwin visited in 1832.
Darwin's First Clues
He was inspired by fossils of armadillos and sloths.
Modern Darwins
They're proving his genius -- and finding his errors.
Escaping North Korea
Defection is daunting. So is starting a new, free life.
Mustang Trail
The crowded West has little room for wild horses.
Voices from the Crypt
Sicily's macabre mummies offer lessons about life.
Backyard Arctic
In winter Mount Washington blows climbers away.
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