Most of the 2,500 to 3,000 wolves in Poland are gray with red or black accents. Black fur comes from a genetic mutation that was likely in domesticated dogs thousands of years ago. The dark fur is ...

The black fur is likely from a genetic mutation that occurred with domesticated dogs thousands of years ago. In Europe, dark fur is rare, though in Yellowstone National Park in the United States ...

WARSAW, Poland — Two rare black wolves, likely siblings, were spotted on camera crossing a stream in a Polish forest, a conservation organization said Sunday. The unusual sighting, captured last ...

Most of the 2,500 to 3,000 wolves in Poland are grey with red or black accents. Black fur comes from a genetic mutation that was likely to have been in domesticated dogs thousands of years ago.