What is the difference between a gray wolf and a red wolf?

Grey wolves are larger with thicker fur and live more north than the red wolves. Red wolves can be found more south, like the deserts of Texas or Mexico, and Grey wolves live in Canada, Alaska, and all of the northwestern states although some can also be found in Mexico. They are of Eurasian origin and can also be found in Africa.

Red wolves are actually hybrids between Grey wolves and coyotes. There used to be three different populations of these hybrids, one in Florida which was a cross between the extinct Florida Black wolves and an earlier great plains coyote population, one in the Mississippi Valley which was a cross between the Mississippi wolves and the great plains coyotes and the last one alive today is a captive population that originated from a remnant extracted from Texas who may be hybrids between the extinct Texas Grey wolf and the southern Texas coyotes. Today, they have been reintroduced into North Carolina. It's also possible that some of the so-called Red wolves from Texas may also have Mexican Grey wolves in them since that population has also mixed with coyotes when they were nearly driven to extinction.

All of the other ones have since backcrossed extensively with coyotes as the pure Grey wolves slowly died out in the east from persecutions. In Canada, the Eastern wolf is another Grey wolf/coyote hybrid population that is closely related to the Red wolves in which they also have much coyote influences and is intermediate in size between the Grey wolves and coyotes.