wolf

wolf, carnivorous mammal of the genus Canis in the dog family. Once distributed over most of the Northern Hemisphere, wild wolves are now confined to the wilder parts of a reduced range. Three wolf species (the gray wolf, red wolf, and coyote) are generally recognized, although there is much local variation within them.

Other living members of the genus Canis include the jackal and the dog, which is classified as a subspecies (Canis lupus familiaris of the gray wolf. All Canis species can interbreed, producing fertile offspring; the Eskimos have interbred wolves and dogs to produce hardy animals for pulling sleds. The maned wolf, Chrysocyon brachyurus, found in wooded areas of central South America, is not a true wolf, although it is a canine (member of the dog family). It has extremely long, stiltlike legs and an erectile mane on the neck. Strand wolf is a name for the brown hyena (not a canine) of Africa. The aardwolf is also a member of the hyena family.

The Gray Wolf

The most widespread is the gray wolf, C. lupus, of circumpolar distribution; in addition to the domestic dog, its subspecies include the timber wolf, the arctic wolf, and the dingo. Extinct in W Europe except in a few isolated pockets, it is still found in SE Europe, Russia, and much of Asia. In the New World it is found in wilderness forests and tundra from Greenland and the shores and islands of the Arctic Ocean to the extreme N United States. There is a healthy population in Alaska, but it has endangered-species status in the 48 contiguous United States (except for Minnesota, where it has a "threatened" status). Thus protected, it is now steadily increasing its range, especially in the Great Lakes region in Minnesota, Wisconsin, and Michigan. Despite the opposition of area ranchers, small populations of Canadian wolves were reintroduced into Yellowstone National Park in 1995, in the hope of restoring balance to the Yellowstone ecosystem. Canadian wolves were also introduced in central Idaho in 1995 and 1996, and natural reproduction has since steadily increased the numbers of both populations. Wolves have also migrated into NW Montana from Canada and established themselves there.

The gray wolf is similar in appearance to a German shepherd, with a thick, shaggy coat, erect ears, and a bushy tail. Its fur is usually gray mixed with black and brown but may be nearly black or, in the Arctic, nearly white. An average-sized adult male is about 3 ft (90 cm) high at the shoulder and 4 ft (120 cm) long, excluding the tail, and weighs about 100 lb (45 kg); some individuals weigh twice as much.

Active mostly at night, gray wolves prey on birds and small mammals and on weak members of larger species, such as deer; they also eat vegetable matter and some carrion. They can run at speeds of up to 35 mi (56 km) per hour and can clear 16 ft (4.9 m) in a single bound. While hunting they can maintain a speed of about 20 mi (32 km) per hr for many hours, eventually wearing down even the swiftest prey. They roam over large areas and may migrate in response to migrations by or numerical fluctuations in their prey species.

Gray wolves hunt singly and in family groups, called packs, which typically include about five individuals. Under severe conditions, especially in winter, several families may join together, forming a pack of up to 30 individuals, rarely more. During the mating season a wolf pair establish a den, usually in a cave or underground burrow, in which they raise the young; both parents bring home food. A pair is believed to remain mated for life.

Because of farmers' fears of raids on livestock, which wolves usually take only when wild prey is unavailable, gray wolves have been hunted ruthlessly, resulting in their extermination in all but the most sparsely populated areas. North American gray wolves have not been known to attack humans without provocation, although Siberian gray wolves have on occasion attacked riders of horses or horse-drawn vehicles. There are many stories of human children being raised by gray wolves, particularly in India, but none has been authenticated.

Red Wolves and Coyotes

The red wolf, C. rufus, is a smaller species that varies in color from reddish gray to nearly black. It has been nearly eradicated from most of its range in the forest and brush country of the S central United States and is listed as endangered. However, captive breeding programs are slowly increasing its numbers, and some have been reintroduced to the wild. The red wolf is similar in behavior to, and may be a hybrid of, the prairie wolf, C. latrans, better known as the coyote. Smallest of the wolves, coyotes are still widespread in W North America. Real estate development in their traditional habitat, combined with the opening up of the ecological niche formerly filled by gray wolves and mountain lions, has prompted coyotes to greatly increase their range; they are now common in the Northeast and have developed small populations in large urban centers such as Chicago and New York City.

Classification

Wolves are classified in the phylum Chordata, subphylum Vertebrata, class Mammalia, order Carnivora, family Canidae.

Bibliography

See E. Zimen, Wolf: A Species in Danger (1981); F. H. Harrington and P. C. Paquet, Wolves of the World (1982); J. L. Gittleman Carnivore Behavior, Ecology and Evolution (1989).

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wolf

Any of three extant species of canine. The gray, or timber, wolf (Canis lupus) is the ancestor of all domestic dogs. It once had the largest distribution of any mammal except human beings, but it is now found primarily in Canada, Alaska, the Balkans, and Russia. Wolves are intelligent and social. Their primary prey are deer, moose, and caribou, though they feed on many smaller animals as well. Because wolves have killed livestock, they have been persecuted by farmers and ranchers. A male gray wolf may be 7 ft (2 m) long and weigh up to 175 lb (80 kg); it is the largest living wild canid. Gray wolves live in hierarchical packs whose territories cover at least 38 sq mi (100 sq km) and hunt mostly at night. The much smaller red wolf (C. rufus), once widespread in the south-central U.S., has been bred in captivity and reintroduced. The Abyssinian wolf (C. simensis) of Ethiopia was formerly considered a jackal. See also dire wolf.

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wolf

1. a predatory canine mammal, Canis lupus, which hunts in packs and was formerly widespread in North America and Eurasia but is now less common

2. any of several similar and related canines, such as the red wolf and the coyote (prairie wolf)

3. the fur of any such animal

4. Tasmanian wolf another name for the thylacine

5. Informal the destructive larva of any of various moths and beetles

6. Music

a. an unpleasant sound produced in some notes played on the violin, cello, etc., owing to resonant vibrations of the belly

b. an out-of-tune effect produced on keyboard instruments accommodated esp to the system of mean-tone temperament

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Wolf

1. Friedrich August . 1759--1824, German classical scholar, who suggested that the Homeric poems, esp the Iliad, are products of an oral tradition

2. Hugo . 1860--1903, Austrian composer, esp of songs, including the Italienisches Liederbuch and the Spanisches Liederbuch

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wolf [wu̇lf]

(acoustics)

A dissonant interval which appears when the meantone scale is extended to include chromatic notes.

(vertebrate zoology)

Any of several wild species of the genusCanisin the family Canidae which are fierce and rapacious, sometimes attacking humans; includes the red wolf, gray wolf, and coyote.

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wolf

symbol on coats of arms. [Heraldry: Halberts, 16]

See : Cunning

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wolf

symbol of success on coats of arms. [Heraldry: Halberts, 16]

See : Success