Great Lakes Invasion
Clip: 11/15/2011 | 8m 57s
Ash-har Quraishi reports on a devastating invasive species affecting the food chain.
A tiny, fingernail-sized organism that some are calling the scourge of the Great Lakes is fundamentally altering marine life. Ash-har Quraishi reports on a devastating invasive species that is causing ripples all the way up the food chain.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
Chicago Tonight is a local public television program presented by WTTW
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Great Lakes Invasion
Clip: 11/15/2011 | 8m 57s
A tiny, fingernail-sized organism that some are calling the scourge of the Great Lakes is fundamentally altering marine life. Ash-har Quraishi reports on a devastating invasive species that is causing ripples all the way up the food chain.
Problems playing video? | Closed Captioning Feedback
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