Pennsylvania State University

SAD affects many through winter months

For many, the changing of the seasons means cozy dark evenings of winter and enjoying holiday light displays. But perhaps for you, the shortening of the days signals a time when you feel down, sad or withdrawn. You may notice ...

dateFeb 18, 2011 in Psychology & Psychiatry
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Native Lizards Evolve to Escape Attacks by Fire Ants

(PhysOrg.com) -- Penn State Assistant Professor of Biology Tracy Langkilde has shown that native fence lizards in the southeastern United States are adapting to potentially fatal invasive fire-ant attacks by developing behaviors ...

dateJan 20, 2009 in
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