Scientific American Frontiers

Season 12 Episode 4

Alien Invasion

Aired Unknown Nov 06, 2001 on PBS
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Episode Summary

Alien Invasion
Alien Invasion is the fourth episode in the twelfth season of the PBS documentary series Scientific American Frontiers, hosted by Alan Alda. In this episode, Alda discusses how and why globalization is changing the world. Specific topics discussed in the episode include plants, insects, animals and diseases and how globalization affects each of these topics individually and collectively.moreless

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