Wolf Characteristics | Wolf Social Structure | Wolf Howling | Wolf Diet and Hunting | Wolf Conservation Status | How can we help Wolves?
About Wolves
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Wolves (Canis Lupus), are related to dogs, or more rightly, dogs are actually related to wolves.
Wolves and dogs are quite similar in many ways, however, in most cases, wolves are larger animals. Wolves generally have longer legs than dogs. It is difficult to imagine, however, everything from a pug dog to a Doberman comes from the wolf.
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The Wolf has developed the capacity to survive in the most inhospitable of climates. The wolves in the high arctic endure several winter months of perpetual darkness. Even in February when sun returns to the north, temperatures of -40°C and bitter winds are common. Other wolves are at home in the desert and the dampness of a humid Gulf Coast swamp.
Wolf Characteristics
Wolves are very intelligent creatures whose upright ears, sharp teeth, pointed muzzles, inquiring eyes and other facial features instantly convey this quality.
The weight and size of a wolf can vary greatly worldwide. In general, height varies from 0.6 to .95 metres (26 – 38 inches) at the shoulder and weight ranges from 20 to 62 kilograms, which together make the Grey Wolf the largest of all wild canids. Extreme specimens of wolf weighing more than 77 kilograms (170 pounds) have been recorded in Alaska and Canada, although they are rarely encountered. The heaviest wild wolf on record, killed in Alaska in 1939, was 80 kilograms (175 pounds). The smallest wolves come from the Arabian Wolf subspecies, the females of which may weigh as little as 10 kilograms (22 pounds) at maturity. Females in any given wolf population typically weigh about 20% less than their male counterparts. Wolves can measure anywhere from 1.3 to 2 metres (4.5 – 6.5 feet) from nose to the tip of the tail, which itself accounts for approximately one quarter of overall body length.
Wolves' bodies are built for stamina, possessing features ideal for long distance travel. Their narrow chests and powerful backs and legs facilitate efficient locomotion. Wolves are capable of covering several miles trotting at about a pace of 10 km/h (6 mph) and have been known to reach speeds approaching 65 km/h (40 mph) during a chase. While sprinting, wolves can cover up to 5 metres (16 feet) per run.
Wolf Social Structure
Wolves are gregarious animals who mostly live in packs. A pack is made when a male and a female wolf meet each other and stay together. As a mated pair, they find a territory to settle in and raise cubs most years. Their cubs stay with them until they are old enough to leave home, usually by the time they are three years old and conditions are right to start a family or pack of their own. You can view a pack as a permanent core of a mated pair plus their continuously dispersing offspring.
The hierarchy in a wolf pack is led by the alpha male and female. This affects all activity in the pack to some extent. In most larger packs, there are two separate hierarchies in addition to an overbearing one. The first consists of the males, led by the alpha male and the other consists of the females, led by the alpha female. In this situation, the alpha male assumes the top position overall in the pack. However, in some cases during the mating season the alpha female takes total dominance even while the pups are still in the den. This is for the rest of the pack to know that she is the one to serve. She also decides were the den will be. With this in the packs mind, they go in search of food and bring it back to the den either for the hungry female or for the pups.
The male and female hierarchies are interdependent and are maintained constantly by aggressive and elaborate displays of dominance and submission. Control of breeding rights is one of the key privileges held by alpha wolves. Alphas are usually the only wolves in the pack to breed and they actively and sometimes aggressively prevent other adult wolves in the pack from breeding. If the other adults want to breed they usually have to leave their pack and set up elsewhere.
Another privilege for the alpha pair is access to food. When a large prey has been captured, they have first rights to eat as much as they want, along with their offspring (pups). In times when food is scarce, the other adults in the pack may do better to disperse and fend for themselves. However, wolves tend to feed amicably when food is ample.
In large packs of wolves there is sometimes a 'second in command'. These are known as the 'Beta wolf or wolves'. Beta wolves typically take on the role of raising the alpha pairs offspring, often becoming surrogate mothers or fathers to the pups while the alpha pair are absent. Beta wolves are the most likely to challenge their superiors for the role of the alpha, though some betas seem content with being second and will sometimes even let lower ranking wolves push ahead them for the position of alpha should circumstances make it necessary for this to happen (death of the alpha, etc.) More ambitious betas, however, cannot wait for the top spot and will challenge the alpha sooner or disperse from the pack to create one of its own. Sometimes, if the alpha is an aging wolf, he will give up his position submissively and allow the beta to take his place. Healthier alphas will fight his challenger intensely to keep his lead roll, sometimes resulting in each one being injured. The loser is usually chased away or may be killed as other aggressive wolves contribute to the insurgency. This kind of dominance encounter is more common during the mating season.
Wolf rank order within a pack is established and maintained through a series of 'ritualised fights' and posturing best described as 'ritual bluffing'. Wolves prefer psychological warfare to physical confrontations, meaning that high-ranking status is based more on personality or attitude than on size or physical strength. Rank, who holds it, and how it is enforced varies widely between packs and between individual animals. In large packs full of easygoing wolves, or in a group of juvenile wolves, rank order may shift almost constantly.
Wolf Howling
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Wolves howl for many reasons. Wolves howl as a way of communicating with other wolves. Wolves howl when they are rallying for a hunt, mourning, communicating with another pack of wolves or when a pack member has become separated - a lost wolf howls and the other members of his pack respond, giving him a sound to guide him home. Pack members recognise each others voices.
Howling can also serve as a declaration of territory or a sign of protection such as protecting a fresh kill.
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Large packs of wolves will howl more than smaller packs of wolves. This is because smaller packs do not want to draw un-necessary attention to themselves. Adjacent packs may respond to each others howls, which can mean trouble for the smaller of the two. Therefore, wolves tend to howl with great care.
Wolves howl at various levels of tones and pitches which tends to prevent a listener from accurately estimating the number of wolves involved. This concealment of numbers makes a listening rival pack wary of what action to take. For example, confrontation could mean bad news if the rival pack gravely underestimates the howling pack's numbers. People have often guessed, based on listening to howls, that a pack of wolves contained up to 20 individuals, when there were only 3 or 4.
Wolves tend to howl the most during the twilight hours, usually before the adults go and hunt and on their return. Wolves also tend to howl more during their breeding season and throughout rearing of pups. The wolf pups in turn will begin to howl and will be provoked into howling sessions quite easily. Such indiscriminate howling usually has a communicative intent and has no adverse consequences so early in a wolf's life. Howling becomes less indiscriminate as wolves learn to distinguish howling pack members from rival wolves.
There are many misconceptions regarding the reasons why wolves howl. Contrary to popular belief, wolves do not howl for the sake of howling at the moon and despite the traditional imagery, wolves do not always sit when they howl - they often remain standing. Under ideal conditions, a wolf's howl can be heard from as far away as 10 miles (16 km). A wolf howl can last between 3 and 11 seconds at a time.
In addition to howls, wolves can also produce whimpers, growls, barks and squeaks. Whimpering tends to serve as either a submissive or friendly greeting sound, since young wolf pups and wolves attempting to appear submissive often whimper. Wolves growl when they are attempting to threaten another wolf or are behaving aggressively. Wolves rarely bark, however, they may do so as an alarm call or during play. Captive wolves who have been exposed to domestic dogs may bark more often than wild wolves or captive wolves who have not been exposed to domestic dogs.
Wolf Diet and Hunting
Wolves usually hunt in packs or sometimes individually. A wolf will nearly always eat what it catches almost completely. Wolves have more advantages when hunting in packs because they are intelligent animals working together and are able to take down animals that are much larger and stronger than an individual wolf. Wolves are strict carnivores and to stay alive, all animals require to eat some sort of food to provide energy and nutrients for their body. Wolves do not kill for sport, but for survival.
Wolves are scavengers and hunters and will eat anything they catch from large mammals to small rodents. Some of the animals wolves hunt and eat include: deer, moose, caribou, elk, bison and musk-oxen as well small animals such as beaver, hares and other small rodents.
Wolves have large stomachs and can devour 20 - 25 pounds of food at any one feeding time. However, wolves are able to survive without food for up to 2 weeks or even longer if prey is scarce. Their digestion is very efficient, with all but 5 percent of large meat feeds able to be digested. Any splinters of bone that are not broken down somehow become wrapped in undigested hair, which protects the intestines from injury.
Pups are fed by the adults who disgorge fresh meat from their stomachs, or carry back fresh pieces of meat to the den. Wolves play an important role to other animal herds. Because wolves only hunt and eat sick or weak animals, they are actually helping the herds regain strength by ridding them of burden animals.
For example, there is a sick deer in a herd which is eating food that could be used to feed healthy young deer. So by eliminating the sick deer, not only will it reduce the possibility of this deer infecting other deer and weakening the herd more, it will make more food available to needy youngsters and therefore performs an important natural function in the eco-system.
Wolves live and hunt mainly in their own territory. The pack members will guard and defend the territory from other intruding wolves. Territory size depends on the availability of prey. Should prey be scarce, territory size can be as small as 25 - 30 square miles, however, if prey is plentiful, wolf territory can cover up to 80 - 90 square miles. A hunt will begin with pack members gathering, greeting each other and howling. These howls will deter other wolves from entering into the packs territory. The wolves commence their hunt by wading through their territory until they come across an animal for prey.
The wolf will approach the prey in the opposite direction of the wind to avoid the animal from detecting the wolf scent and running away. The wolves will close in slowly, sometimes in single file. As soon as the prey is aware it is being pursued and tries to escape, the chase begins. The wolves chase their prey and once caught, bite their animals by attacking the rump or sides. Large animals with horns are usually attacked this way so the wolves avoid wounding by the horns which are used as weapons against the wolves. Once down, the animal will be weakened and killed with a bite to the throat or snout. Then it is dragged away for all to feed upon.
Wolf hunts can either last minutes or hours depending on whether attacks are successful or not. If an attack fails, the wolves will continue to hunt until they are successful. It is a matter of survival.
Wolf Conservation Status
Wolves were mistakenly viewed as a pest species and almost exterminated. We are more enlightened today, although this opinion still remains among farmers. Through the efforts of ecologically-minded people and with the Endangered Species Act funding, the wolf is being reintroduced in parts of North America.
With an increasing number of animals throughout the world either in a critically endangered situation, becoming endangered or a threatened species, wolves are no exception. Many projects are being carried out to reintroduce many wolf species such as the USFWS in North America and the International Wolf Centre.
Things You Can Do to Help Wolves
Learn more about wolves by looking at Wolf Web sites and reading more about them in books. You will find lots of information about them on the internet and on personal web pages.
Tell your friends and other people what you know about wolves, and how important they are to this world and how important it is to save a place for them in nature.
