Skeleton of a dinosaur head

"Dinosaurs" (9-16-2008)   Visit the Website

Full Show: Dinosaurs once dominated the earth, and they've since dominated the interest and curiosity of D4K's viewers. On this first show of D4K's 10th season, host Joan Cartan-Hansen and her guest scientist, paleontologist David Varricchio from Montana State University, explore recent discoveries about these ancient creatures.

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Other: Dinosaurs once ruled the earth. Why did they go extinct? Scientists have learned surprising things about how dinosaurs lived and why they died out.

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Web Extra: Paleontologist David Varricchio stays after to answer more questions about dinosaurs.

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