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THE HUMAN SPARK

Alan Alda and Man's Best Friend

  • Aired: 12/15/2009
  • 05:11
  • Rating: NR
Alan Alda visits a dog lab where researchers are investigating communication talents our canine companions have that our much closer relatives the chimpanzees don't. Have we bred a glimmer of the human spark into man's best friend?
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Have we bred a glimmer of the human spark into man's best friend?
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