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Wolves hold a unique place in nature and in the human psyche. The precursor to “man’s best friend” but also evil predators in fairy tales, wolves have an ability to fascinate and induce fear that is hard to dismiss. But there are also some that have faced extinction, including the red wolf, the Ethiopian wolf, and the Mexican wolf.

Red wolf

Categorized by the U.S. Fish and Wildlife Service as the most endangered wolf species in the world, the red wolf (Canis rufus) once roamed freely in the eastern part of the United States. During the early part of the 20th century, efforts to keep the wolf from preying on livestock and significant habitat degradation left it on the brink of extinction. As of 2025 there were about 15 red wolves loose in their native habitat of eastern North Carolina and about 240 being cared for in captivity. The red wolf is listed as critically endangered on the International Union for Conservation of Nature (IUCN) Red List.

The red wolf has reddish markings on its head, ears, and legs but is mostly brown or buff in color. It stands about 66 cm (26 inches) tall at its shoulder and is about 1.2 meters (4 feet) long from nose to tail. Red wolves weigh 20–36 kg (45–80 pounds).

Ethiopian wolf

There remain about 500 Ethiopian wolves (Canis simensis) that live in packs in the mountains of the eastern African country. But many of those packs are small, and terrain keeps the packs separated, which poses a significant threat to the viability of the species. Other threats to the species include habitat loss, disease, and motor vehicles. The IUCN Red List categorizes the Ethiopian wolf as endangered.

The Ethiopian wolf is a striking animal and has been described as “a wolf in fox’s clothing,” with its long legs and a reddish coat. It is about 1 meter (3 feet) long and weighs 11–20 kg (24–44 pounds). Although they live in packs, Ethiopian wolves are solo hunters, most often preying on rodents.

Mexican wolf

Like the red wolf, the Mexican wolf (Canis lupus baileyi) stood on the brink of extinction in the southwestern United States and Mexico in the second half of the 20th century. As their natural prey of deer and elk diminished at the end of the 19th century and cattle populations increased, wolves turned to livestock for prey, with deadly consequences. By the middle of the 20th century, Mexican gray wolves had largely disappeared from the United States and populations in Mexico were severely depleted. Joint programs by the two countries helped revive the species. The U.S. Fish and Wildlife Service 2023 census of Mexican wolves found at least 257 of the animals in Arizona and New Mexico. The IUCN lists gray wolves as a species of least concern.

The Mexican wolf is a subspecies of the North American gray wolf. It weighs 23–36 kg (50–80 pounds) and measures about 1.7 meters (5.6 feet) from nose to tail. It is 71–81 cm (28–32 inches) tall at the shoulder, and its coat is buff, gray, rust, and black.

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