Many of us have heard the story of how reintroducing wolves to Yellowstone National Park helped bring the ecosystem back into balance and health. The wolves managed other animal populations, such as deer, that had begun to overrun the park and overgraze important vegetation.
But did you know that the cascading effect of the wolves actually changed the rivers, too? It’s true! But don’t take our word for it. Check out this short, fun video from Sustainable Human that explains how this fascinating phenomenon came about.