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Thursday, October 28, 2010

Photo: Dinosaurs Went Underground to Wait Out Extreme Weather


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About the size of a big iguana, a polar dinosaur snuggles into a riverbank den in an artist's conception.

A July 2009 study reports the discovery of the world's oldest known dinosaur burrow in what is now Australia. The discovery suggests that some dinosaurs survived extreme weather by going underground, researchers say.

Illustration by James Hays, Fernbank Museum