Narrated by the British writer and environmental campaigner George Monbiot, and largely drawn from his book Feral, it describes how the reintroduction of wolves to Yellowstone National Park in the US ...

When wolves are on the hunt, a kill rarely goes unnoticed for long. In the elk- and deer-rich areas of northern Yellowstone National Park, ravens are often among the first scavengers to arrive on the ...

Add Yahoo as a preferred source to see more of our stories on Google. Wolves are swift and agile, but they typically remain close to the ground while chasing prey. But not always. The accompanying ...