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©iStockphoto.com/Magdalena Bujak

©iStockphoto.com/Magdalena Bujak

©iStockphoto.com/Magdalena Bujak

Peaks protected fifty years ago by the Wilderness Act no longer keep mountain goats safe from human impact.

By the 1920s, California had lost all of its grizzly bears—once considered a distinct species and an emblem of the state.

Preconceptions skew our view of the biggest killer in the developed world, atherosclerosis.