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Season 21, Episode 4

  • Aired: 10/28/2009
  • 28:49
  • Expires: 10/27/2012
  • Rating: TV-G
Vultures - We search for the elusive vulture, believed to be one of the smartest birds in the world. Knowles Creek Update - We return to a controversial stream restoration project to see the big difference it made. Wave Power - Update on OSU project to use ocean waves off Oregon to generate power.
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Season 21, Episode 4
Season 21, Episode 4
Vultures; Knowles Creek Update; Wave Power
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