In one clip, a black wolf and a gray wolf slowly crossed a stream in ... “For people, it is a new phenomenon,” Roman Gula, head of the organization's wolf monitoring project, told the AP.

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 ...

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

Wolves' fur color is frequently a grizzled gray, but it can vary from pure white to coal black. A wolf's longer legs, larger feet, wider head and snout, and straight tail distinguish it from both ...

In one clip, a black wolf and a gray wolf slowly crossed a stream in ... “For people, it is a new phenomenon,” Roman Gula, ...