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Chemistry

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Kennewick Man Skeleton

MARINE MAN  New chemical analyses of Kennewick Man’s left shin bone (the larger bone in his lower left leg) indicate that this ancient resident of the Pacific Northwest almost exclusively ate seafood.

car traffic

BAD AIR  Reactive molecules in air pollution, including from car exhaust, may thwart immune responses in babies’ lungs. The immune response possibly explains how bad air spurs severe infections and chronic asthma.

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