Prehistoric Monsters Revealed

  • 1h 30m 34s
  • 2008
  • TV-PG
  • CC

99% of all animal and sea creatures who ever lived have become extinct. Meet some of the most bizarre, including a strange amalgam of bird and sloth, a 7-foot shrimp, saber-toothed cats, mastodons, and wooly rhinoceros.

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