A surprising sighting of rare black wolves in Poland has sparked curiosity among scientists and conservationists. These wolves, more commonly found in North America, are a rare phenomenon in Europe, ...

When she noticed she was recording wolves instead, she kept the camera there and collected the black wolf footage a few weeks ago. In one clip, a black wolf and a gray wolf slowly crossed a stream ...

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 ...