How wolves change rivers

How wolves change rivers is a video story created by the American non-profit organization “Sustainable Man” in 2014 with the aim of educating about the importance of each species for nature.

This is the story of how wolves changed the course of rivers in Yellowstone National Park. It is a story that explains trophic cascades; that all life is connected and that any changes in food chains affect all other species and even the way rivers flow.

This video went viral almost 10 years ago, very soon after it was posted on YouTube. It has been viewed more than 43 million times and is credited with changing people’s hearts and minds about wolves, helping to transform them from sinister villains to ecosystem engineers. Since then, it has been used in countless classrooms and museums around the world to teach people about the value each species brings to the ecosystem.

This story teaches us that our actions, big and small, can dramatically affect life itself. Instead of seeing each individual species as separate from the whole, we must begin to see how all life is interconnected and interdependent on one another. Only when all life progresses can humanity progress. It is impossible to separate one from the other.

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