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S41 Ep9: The Mysteries of Optic Flow

Birds use a trick of the eye called “optic flow” to zip through forests without colliding.
  • Premiere Date: Apr 07th, 2014
  • Rating: NR
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S41 Ep9: The Mysteries of Optic Flow

Birds use a trick of the eye called “optic flow” to zip through forests without colliding. (2:58)
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