How do you know whether Punxsutawney Phil sees his shadow? A Slate investigation.
By Timothy Noah
Updated Tuesday, Feb. 2, 2010, at 12:04 PM ET
Early Tuesday morning, notorious groundhog Punxsutawney Phil emerged from his home and was declared to have seen his shadow, ushering in six more weeks of winter. This weather-prediction ritual raises an important question: How does one determine whether a groundhog has seen its shadow? In 2004, Timothy Noah traced the answer back to pre-Christian pagan rituals. The article is reprinted below.
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