By Stephen A. Marshall
By Gilbert Waldbauer,
Illustrations by James Nardi
By Sean Carroll
By Jim Bell
By edited by Diana Donald and Jane Munro
By Douglas Palmer, illustrated by Peter Barrett
By Theodore Cross
By Dominic Couzens
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.