Piranha Invasion
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Piranha Invasion
by weasel666 Tue 25 Feb 2014, 02:37
A look at the growing number of South American piranha that are appearing in U.S. lakes and streams. A team studies how they are adapting and collects evidence to determine if the predatory fish are becoming a new threat to fresh water environments.
For more info check http://en.wikipedia.org/wiki/Piranha
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