May
30
2017

Species Profile: The Gray Wolf

People have been fascinated with, and yet, afraid of the gray wolf for centuries now. Here are the facts about the largest wolf breed on earth, the gray wolf.

Closeup of the gray wolf

Closeup Of The Gray Wolf.

The gray wolf (or grey wolf) is a native animal of the wilderness and some remote areas of Eurasia and North America.

It’s the largest and most well-known wolf species to humans easily distinguished from other wolves by its sheer size and less pointed ears and muzzle.

 Though called gray wolf, their fur varies in color from mottled gray, pure white, red, brown, and even black.

They are social creatures usually travelling in a nuclear family composed of an adult mated coupled and their offspring. The gray wolf maintains its position as the apex predator wherever it’s found. Its only contenders are humans and tigers.

It can hunt fearlessly and will attack large hoofed animals but will also feed on smaller animals, livestock, carcasses, and garbage.

Because of its attack on livestock, it has been hunted for centuries by people and is now extinct in many areas globally.

1) Scientific Name

Canis Lupus

2) Scientific Classification:

  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Mammalia
  • Order: Carnivora
  • Family: Carniformia
  • Genus: Canis

3) Life Expectancy

Wolves in the wild averagely live for between six to eight years, with the oldest age so far being 13 years. In captivity, they can live for up to 16 years.

 4) Average/Maximum Length And Height

Generally from 2.5 feet tall and 5 to 6 feet long.

The weight of individuals of this species varies with location. For instance, the larger wolves of Alaska and Canada can weigh up to 3 or 6 times more than gray wolves from the Middle East and South Asia.

5) Average/Maximum Weight

Adult males are generally larger than the females of the species. Males weigh between 43 and 45 kg. (95 and 99 lbs.), and females between 36 and 38.5 kg (79 and 85 lbs.)

6) Running Speed

Between 50 to 60 Km/h. Up to 70 Km/h when in pursuit of prey.

7) The Gray Wolf And Humans

  • Danger to humans

Gray wolf attacks are rare because once sighted, they are often subsequently hunted and killed. Of course as with all wild animals of any significant size, wolves can be dangerous.

They usually do not show aggression toward people. In fact, wolves are wary of humans and won’t display aggression towards them by nature. Also, of all the large predator attacks, wolf attacks are the least frequent. Although wolf attacks do occur, most attacks are attributed to rabid wolves.

The frequency of attacks on humans also varies with geographical location and historical period. The major source of friction between man and wolf remains the latter’s attack on livestock.

  • Interaction with humans

Wolves have fascinated people for centuries now. From mythology, to folklore, history, fables and modern literature, wolves, especially the gray wolf, continues to feature prominently in the human imagination. In literature, for example, the wolf is portrayed as deceitful and dangerous but also powerful.

In many cultures, the gray wolf remains a symbol of strength and fighting/hunting prowess.

On the other hand, it is also despised and hunted mostly in farming communities due to the inevitable attacks on livestock. For now, the wolf population has definitely reduced across most species. The few that exist show a general fear of humans and prefer to stay well away from them.

 As always, exercise caution in the presence of wild animals.

 8) Reproduction Details

The Gray wolf can vary in color

A Couple Of Black And White Gray Wolves. The Gray Wolf Varies In Color (Author: Stefan/Wikimedia Commons cc 2.0)

The gray wolf displays monogamous reproduction with one mate for life but it will pair with another if its mate dies. The males may also display homosexual behavior in rare instances.

This species can mate and reproduce from the age of 9 to 10 months (in captivity), to 2 years old (in the wild). Being mammals, they produce live young with a gestation period of 62 to 75 days.

Pups are mostly born in the summer months. Average litter size is about 5 to 6 pups though there are very rare records of up to 17 pups at a time.

Newborn pups are blind and deaf for the first 2 weeks after birth and weigh 300–500 g (11–18 oz).

9) Diet/Hunting Pattern Of The Gray Wolf

This is a slender and powerfully built animal with long legs that allow it to move swiftly even in deep snow. Its heavy, large teeth are perfect for crushing most bones and it clamps down with a bite force in the range of 10,340 kPa (1,500 psi). That’s about twice the bite force of a German shepherd.

The gray wolf can hunt successfully in a pack or alone and a lone gray wolf can even bring down a moose or bison.

It hunts in stages: tracking prey by scent, stalking quietly, chasing it, and the final attack. In the case of very large prey, the wolf will tear off large chunks of flesh to cause massive blood loss. For smaller prey, it will tear out their throat or simply immobilize them with its front paws and pin them down.

The breeding pair in the pack feeds on prey first and when they’re done, other family members can eat.

10) Alternative names

  • Timber Wolf
  • Western Wolf

11) Population And Conservation Status

The gray wolf was the most widely distributed mammal in its natural habitats globally but deliberate and continuous human slaughter of this species has reduced its population to about a third of what it used to be.

This attack was relentless and was aimed at protecting human lives and livestock.

Consequently, the attacks were so successful that this species is now extinct in a large part of Mexico, Western Europe, and the United States.

Today, you may spot scattered populations of the gray wolf in remote wilderness areas of Canada, Alaska, northern USA, Europe, and parts of Asia. There were comprehensive recovery and conservation efforts in the 1970s, and as a result, there’s a slight recovery of their numbers.

In addition, gradual rural human population migration to urban areas and polices like legal protection and land-use changes have had positive effects on their numbers.

For now, the gray wolf is listed as Least Concern by the IUCN.

 12) Ancestry And History

Wolves in general have evolved over a timescale of about 800,000 years. The modern dog, gray wolf, and dingo are closely related.

The major differences in the evolution of each group relies heavily on conditions like habitat, climate, type of prey, etc. Experts believe that many wolf populations went extinct at the same time with the Last Glacial Maximum (24,000 to 18,000 calendar years ago).

In the genus Canis, the gray wolf has the position of the second most specialized member after the Ethiopian wolf. This is because of its attributes like its adaptations for hunting large prey, a highly advanced expressive behavior, and its social behavior.

Nevertheless, it’s still closely related to smaller species like the coyote and the golden jackal and it breeds successfully with them.

 13) Distribution And Habitat

Gray wolves will thrive in a diversity of habitat as long as they have access to prey. They can live in woodlands, mountains, deserts, grasslands, tundra, forests, etc.

Today, gray wolves exist in some number in places like Alaska, in the Yellowstone National Park (Wyoming, USA), in parts of Canada, and Asia. In Europe, you can find them in Italy, Greece, Croatia, Russia, Finland, etc.

 

References:

1. http://www.humanesociety.org/animals/wolves/facts/faq_gray_wolf.html?referrer=https://www.google.com.ng/

2. http://www.defenders.org/gray-wolf/threats

3. https://en.wikipedia.org/wiki/Gray_wolf

Photo Credits:

1. https://depositphotos.com/search/gray-wolf.html

2. https://en.wikipedia.org/wiki/Gray_wolf#/media/File:Black_and_White_Wolves.jpg

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