A fascinating overview of the well-studied Wolves of Yellowstone National Park in the US and how the reintroduction of Wolves has changed rivers, creating new ecosystems and opportunities for hundreds of other species to thrive.

The natural world is amazing, let's take care of the few remaining wild places in it. We can do this by protecting ecosystems, endangered species and fighting environmental damage - the internet is where it begins! Find out more on the ABOUT page.