How Wolves Change Rivers

Support the creation of more videos like this: When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers George Monbiot explains in this movie remix. Sustainable Human is a 501c3 nonprofit started by a husband and wife team (Chris and Dawn Agnos) whose mission is to examine the underlying stori