How Wolves Change Rivers

Everything in nature is in balance (until us humans mess with it, that is). In an amazing example of when things go right, this 4 minute video demonstrates the immense impact a complete ecosystem – complete with keystone species, Wolves – has on the entire ecosystem, including the landscape itself.


Based in Yellowstone National Park (US), the wolves improved the landscape and health of the other species of the ecosystem dramatically. It just goes to show that every species in a complete ecosystem has an important place and role to play.

Video by Chris and Dawn Agnos.