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NATURE

S34 Ep7: The 500-Pound Dinosaur Heart

The heart of a newly-discovered dinosaur may have weighed as much as a grizzly bear.
  • Premiere Date: Feb 17th, 2016
  • Rating: NR
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S34 Ep7: The 500-Pound Dinosaur Heart

The heart of a newly-discovered dinosaur may have weighed as much as a grizzly bear. (1:14)
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