Beautiful images reach us from Poland via ... But in Europe, there is less genetic diversity among wolves, making all-black fur very rare. Unlike Yellowstone National Park in the United States ...

In Yellowstone, grizzly bears and wolves live pretty close together, and their territories often overlap. As you can imagine, ...

For most animal biologists, seeing an all-black variant of their studied species would be a once-in-a-lifetime experience. But in North America, especially in Yellowstone National Park where a large ...

The dark fur is rare in Europe due to a reduced genetic diversity, but at least half of the wolf population has black fur in Yellowstone National Park in the United States. Because wolves travel ...

The restoration of wolves into Yellowstone was a “moon shot” moment, according to director Tom Winston. Winston says the reintroduction of wolves to Yellowstone will be “a motivating factor ...