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Great Lakes Wild

The Goby Effect

Season 1, Episode 3

The Lake Erie Watersnake is currently on the brink of extinction, and researchers have been fighting to get it back. And it looks like it's finally working - thanks to the round goby. But when a lake is so toxic that not even the hardiest of invasive species can thrive, what should be done?

 Read more Read less Duration: 23 min