There is not an exact set of eight classifications for wolves, but there are several recognized species and subspecies. Major examples include:
Gray Wolf (Canis lupus)
The most widespread wolf species, found across North America, Eurasia, and parts of Asia in forests, tundra, and grasslands.
Arctic Wolf (Canis lupus arctos)
A gray wolf subspecies adapted to the high Arctic, with thick white fur and smaller ears to minimize heat loss.
Mexican Wolf (Canis lupus baileyi)
A critically endangered gray wolf subspecies from the southwestern United States and Mexico.
Red Wolf (Canis rufus)
A critically endangered species native to the southeastern United States, known for its reddish-brown coat.
Eastern Wolf (Canis lycaon)
Found in eastern Canada; its status as a distinct species or subspecies is debated among researchers.
Ethiopian Wolf (Canis simensis)
A critically endangered canid from the Ethiopian Highlands, also known as the Simien fox.
Maned Wolf (Chrysocyon brachyurus)
A large, long-legged canid from South American grasslands and savannas, not a true wolf but closely related.
Coyote (Canis latrans)
Though not a true wolf, the coyote belongs to the same genus and is widespread across North America.