Articles by Stam Zervanos, Pennsylvania State University

Groundhog handler Ben Hughes watches Punxsutawney Phil after he did not see his shadow, suggesting an early spring during Groundhog Day festivities on Feb. 2, 2011, in Punxsutawney, Pennsylvania.

Why Do Groundhogs Emerge on Feb. 2, Really?

Opinion Research into groundhog biology shows they have other priorities in early February than predicting winter and mingling with the people of Punxsutawney, Pennsylvania.

Opinion