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Evolving Science at the Field: Horned Dinosaurs: Display or Defense?

Ever wonder what dinosaurs use all of those unusual frills and horns for? Hear from an expert about the latest theory concerning their use, including competition for mates and easy identification of others in their species. Dr. Makovicky's research focuses on the Ceratopsia group, or horned dinosaurs, and he has studied them in fossil sites around the world.

 

Recorded Saturday, March 31, 2007 at The Field Museum.

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