How Yellowstone Scientists Really Combat Invasive Species
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Yellowstone cutthroat trout are on the brink of extinction as invasive lake trout continue to eat them. With the park's ecosystem at risk, it's up to scientists to figure out where these predators came from and how to contain them.
From: MYSTERY IN YELLOWSTONE
http://bit.ly/2c8mag5
From: MYSTERY IN YELLOWSTONE
http://bit.ly/2c8mag5
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