Science

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The ocean, by some estimates, holds enough salt to cover the entire surface of the Earth, layered to the height of a 40-story office building. Much of the salt in the ocean comes from rock that gets…

Medical historian Dr. Howard Markel revisits moments that changed the course of modern medicine. The place: The Eagle, a genial pub and favorite luncheon spot for the staff, students and researchers working at the University of Cambridge's old…

Feb 26

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The Hidden Lives of Wolves

From 1990 to 1996, Jim and Jamie Dutcher lived in a tented camp on the edge of Idaho's Sawtooth Wilderness, where they observed and studied the behavior and social hierarchy of a pack of gray wolves, known as…