The gray wolf, also known as the timber wolf or ... although nearly pure white, red, or brown to black also occur.

A second clip, taken last fall, records two black wolves and a gray wolf fording the same stream. Most of the 2,500 to 3,000 wolves in Poland are gray with red or black accents. Black fur comes ...

Red wolves are among the most endangered carnivores in the world. Once spread across the U.S. Southeast, these clever and highly adaptive predators suffered a similar fate to that of their gray wolf ...

At that locus, each wolf has two copies of a color gene, of which there are two possible alleles: gray or black, the latter being dominant. The 2018 study, conducted on wolves from four North American ...