Strange Days On Planet Earth
Invaders
E1 Apr 19, 2005 60m
Across the world, plants and animals are silently finding their way into places where they don't belong. These interlopers, called invasive species, have enormous powers — they spread disease, they devour our buildings. Some are destroying the very land under our feet. Odds are these species that evolved in one place and now live destructively in another may have even infiltrated your own backyard.
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