Wolf

The wolf (Canis lupus; pl.: wolves), also known as the grey wolf or gray wolf, is a canine native to Eurasia and North America. It is the largest wild extant member of the family Canidae. Wolves are known for their cooperative hunting habits, working together in packs to catch large animals. They live in nuclear families, usually consisting of a mated pair and their offspring, and often howl to communicate with each other.

Wolves have thick fur that can be white, brown, grey, or black, depending on where they live. They are apex predators, which means they are at the top of the food chain, and they mainly eat hooved mammals, though they will also eat smaller animals, livestock, carrion, and garbage. Single wolves or mated pairs often have better success when hunting than large packs.

The global wild grey wolf population is estimated to be between 200,000 and 250,000 individuals as of 2026. Wolves have had a complex relationship with humans throughout history. In some cultures, they were respected, while in others, they were hunted because of concerns about attacks on livestock. Wolf attacks on humans are rare, and most incidents involve animals suffering from rabies.

Etymology

The word "wolf" comes from old languages. In Old English, it was wulf, which came from an even older language called Proto-Germanic. This word also influenced the Latin word lupus. The name "grey wolf" describes the animal's greyish fur.

Long ago, Germanic peoples, like the Anglo-Saxons, used wulf in their names. Some of these names include Wulfhere meaning "Wolf Army" and Wolfgang meaning "Wolf Gait."

Taxonomy

Main article: Subspecies of Canis lupus

Further information: Pleistocene wolf

Main article: Evolution of the wolf

Further information: Domestication of the dog

Main article: Canid hybrid

In 1758, the Swedish scientist Carl Linnaeus named the wolf Canis lupus in his book Systema Naturae. He thought domestic dogs were a different species from wolves because of their upturning tails.

Wolves have many subspecies, with over thirty recognized. Some, like the dingo, are closely related to domestic dogs. Studies show that modern wolves and dogs share a common ancestor. The oldest known wolf fossils are from Italy and Alaska, dating back hundreds of thousands of years.

Wolves have changed over time, with some ancient types having stronger jaws for eating big animals. Today’s wolves come from a mix of ancestors in Siberia and Beringia. Genetic studies help us understand how wolves evolved and mixed with other animals like coyotes and jackals.

Description

The wolf is the largest wild member of the dog family, with a broader snout, shorter ears, a shorter torso, and a longer tail than other similar animals like coyotes and jackals. Wolves are powerfully built, with strong legs that help them run quickly and move easily through deep snow. They have large heads with strong jaws and teeth good for crushing bone.

Wolves vary in size depending on where they live, but they usually measure between 105–160 cm (41–63 in) in length and weigh around 40 kg (88 lb). Their fur is thick and dense, helping them stay warm in cold climates. Wolves can have different coat colors, such as white, brown, grey, and black, depending on their location.

Ecology

Wolves live across Eurasia and North America in many different environments. They can be found from sea level up to 3,000 meters in forests, wetlands, shrublands, grasslands, deserts, and even rocky mountain peaks. Their habitat depends on factors like prey availability, snow conditions, human activity, and landscape features.

Wolves are skilled hunters, often working in packs to catch large animals such as moose, elk, deer, and wild boar. They also eat smaller animals like rodents, hares, and birds, and sometimes even plants like berries and grass. In areas with many people, wolves may eat livestock or garbage when other food is scarce.

Behaviour

See also: Dog behaviour

The wolf is a social animal and lives in groups called packs. These packs usually consist of a mated pair and their children. On average, a pack in North America has about eight wolves, while in Europe it may be a bit smaller. Wolves stay together as a family for several years before some leave to find their own mates and start new packs.

Wolves talk to each other in many ways, using sounds like howls, growls, and barks, as well as body language and smells. Howling helps wolves call their pack together, especially before hunting or when they are lost. Wolves also leave scent marks by urinating or scratching trees to tell other wolves where their territory is. These marks can last for weeks and help keep other packs away.

Status and conservation

Further information: List of gray wolf populations by country

The global wild wolf population was estimated at around 300,000 in 2003. Since the 1970s, wolf numbers have stopped declining in many areas. This has allowed wolves to return to parts of their old homes because of laws to protect them, changes in how land is used, and people moving from rural areas to cities. Even though wolves sometimes compete with people for livestock or animals, and some people worry about wolves being dangerous, they are still common enough that groups like the IUCN consider them not to be in danger.

In North America, Canada is an important home for wolves, with between 50,000 and 60,000 living there. In the United States, wolves were almost gone because of farming, loss of their food, and efforts to kill them. But since 1973, laws have helped wolves come back in places like Yellowstone and Idaho. Today, there are over 4,000 wolves in the Great Lakes area and more than 3,000 in the northern Rocky Mountains and northwest. In Mexico, efforts to save the special Mexican wolf have helped their numbers grow to over 300.

Relationships with humans

In culture

Main article: Wolves in folklore, religion and mythology

See also: Wolves in heraldry

Wolves appear in many stories and beliefs from around the world. The Ancient Greeks linked wolves to Apollo, their god of light. The Ancient Romans connected wolves to Mars, their god of war, and they believed their founders, Romulus and Remus, were cared for by a she-wolf. In Norse mythology, there are famous wolves like Fenrir and Odin’s pets Geri and Freki.

Wolves also show up in fables and books. Aesop told the story of "The Boy Who Cried Wolf", which teaches us about honesty. In tales like "Little Red Riding Hood" and "The Three Little Pigs", wolves are often the scary villains. In books like Rudyard Kipling’s The Jungle Book, wolves are shown as family members, which is a kinder view.

Conflicts

Human presence can stress wolves. One big problem is that wolves sometimes attack farm animals, which causes trouble for people who raise livestock. This is especially true when there isn’t enough wild food for wolves. In places like Europe, sheep are often targeted, while in other areas, it might be reindeer or goats.

Wolves can also compete with dogs, sometimes seeing them as food. This can be upsetting for people who love their dogs. There are also rare cases where wolves might attack people, especially children, but this does not happen often and usually only when wolves lose their fear of humans.

Human hunting of wolves

See also: Human uses of hunted wolves

Wolves have been hunted by people for many years. They are tricky to catch because they are smart and fast. Hunters have used many ways to find and kill wolves, including using dogs, special traps, and even airplanes. In some places, people have trained eagles to help hunt wolves, though this is now rare.

Wolves as pets and working animals

Main article: Wolves as pets and working animals

Wolves and part-wolf animals are sometimes kept as pets, but they can be dangerous. They do not behave like regular dogs and can hurt people. It is important to remember that wolves are wild animals and are not safe to keep as pets.