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Listen to: What Is A Dinosaur? | How To Mend A Heart

Publication Date

June 9, 2011

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Audio Content Description

Everyone has a favorite dinosaur, but what is a dinosaur? Is it a reptile? Is it a bird? Dinosaur paleontologist David Varricchio discusses these extinct animals. Also, learn how we may one day be able to mend a broken heart . . . after a heart attack.