Singled Out

How to study cells, one by one

By Susan Gaidos, 12:02 PM September 22, 2011

Fly over any baseball stadium when the home-team batter slams a double in the gap with two men on base, and you’ll see a crowd of fans rising in unison, arms waving wildly in the air. You’d think you were viewing typical baseball fan behavior.

Witness this scene at ground level, though, and you’ll get a different picture. While a majority of fans participate in the cheering, others are sipping beer, attending to scorecards or roaming the walkways in search of a hot dog.

Such displays of in...

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