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Nature: Season 14

14x10 Alien Empire: Voyagers and War of the Worlds
TV-G

  • 1996-02-14T01:00:00Z on PBS
  • 53m
  • United States
  • English
  • Documentary, Family
"Alien Empire" concludes with a look at how insects have spread and how humans have tried to combat that expansion. Included: crickets that have adapted to climatic extremes; the threat posed by gypsy-moth caterpillars.
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