How Wolves Changed Rivers in Yellowstone Park
You might not think there was a direct link between the behavior of wolves and the behavior of rivers, but there is. At least, there is when wolves were reintroduced to Yellowstone National Park in the United States. The wolves had been absent from the park for nearly 70 years, and when they were brought back a strange “trophic cascade” occurred.
If you’re wondering WTF a trophic cascade is and exactly how wolves change rivers, then this video explains all.
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