News
- Earth
As globe warms, atmosphere keeps its cool
Scientists confirm a confusing discrepancy between temperatures at Earth's surface and in its atmosphere.
- Health & Medicine
Oxygen limits infections from surgery
Giving patients extra oxygen during and shortly after colorectal surgery halves the incidence of infection.
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Popular Boys Show Their Tough Side
Some highly aggressive boys may become popular figures in their elementary school classes and wield much influence over classroom discipline.
- Animals
Oops. Woodpecker raps were actually gunshots
The knock-knock noises recorded last winter that raised hopes for rediscovering the long-lost ivory-billed woodpecker in Louisiana turn out to have been gunshots instead of bird noises.
