Preface |
I've had quite a number of requests from people to give them information about wolves.
Most of these have been from people needing information for a school project or
similar (and to those whose requests I accidentally deleted, I'm
very, very sorry). Since I tend to send them much the same thing
each time (and type it out each time - I forget to save the message), I thought I'd create this page.
It also helps me to put a lot of the information I have on wolves into a form
I can use and understand.
I've taken most of my information from(mainly) three sources:
WOLF by Maureen Greely,
WOLVES by Leonard Le Rue III and the
1997 Wolves Calendar by Rita Groszmann.
If you need to know more, I would recommend you borrow or buy the two books
mentioned above. They are well worth the read.
|
Introduction |
Wolves are intelligent, complex creatures much maligned by mankind over the
centuries. With their endurance and strict pack structure giving them
superior hunting ability, they seem to symbolise the best and worst of
humanity.
I'm mostly going to cover the Gray Wolf here, but a lot of the information
equally applies to other species of wolf.
|
Statistics |
Gray Wolf Canis lupus |
Length | Up to 1.8 meters (6 feet) including tail |
Height | 84 to 96.5 cm (33 to 38 inches) at the shoulder |
Average weight | 34 to 56kg (75 to 125 pounds) |
| M/F difference | Males can be up to 25% larger than females |
Colour (color) |
Many shades of gray. May also range from white to black with many
combinations in between, including cream, tan, buff, sandy brown and reddish. |
Size of Pack |
Varies between less than seven to twenty (due partly to availability of prey) |
Mating | When | Around January or February (depending on latitude) |
Gestation | 63 days |
Litter Size | 3 to 10 pups |
Prey/Diet | Moose, deer, elk, caribou, bison, beaver, rabbits and mice. |
Speed | Up to 35 miles an hour for short distances. 5 miles an hour indefinitely |
|
The Pack |
Gray wolves are extremely sociable and highly intelligent animals. They
typically live in packs of 5-10 related animals and function as a highly
cooperative family unit.
|
The Heirarchy |
In every pack there is an alpha male (sometimes a female). The alpha and
his/her mate comprise the alpha pair. The alpha leads the pack
in the hunt and makes important decisions concerning the welfare of the group.
Just below the alpha pair is the beta wolf (the second ranking male), then
the subordinates (wolves of both sexes). At the bottom of the hierarchy is
the omega wolf. This wolf (male or female) is the scapegoat and can bear
the brunt of the pack's frustrations and harrassment. It will usually
be the last to feed, or may go without when food is scarce.
The wolves depend on pack stability and cooperation to successfully bring
down large prey such as deer, moose and wapiti. When big game is scarce,
large packs break down into smaller groups to hunt smaller prey.
|
The Hunt |
As has already been mentioned, the pack relies on its rigid structure to
successfully bring down large game. Their hunting techniques display great skill and
exceptional intelligence. The alpha seemingly
assigns pack members to start the initial chase of the prey and then has other pack
members come into provide relief so the original team can rest briefly. This ensures
that all the wolves will be available for the kill and not be exhausted by the time the
prey has been depleted of its resources.
|
Mating |
An alpha pair, once formed, usually stay together for life. Females come into
season at the end of every winter; however only the alpha pair have the privelege of
mating and breeding. The alpha wolves actively court each other, grooming and nuzzling
each other with great affection. This courtship can go on for a few weeks. Subordinate
males and females often compete
for a higher place in the hierarchy at this time, causing tension among the pack. The
mating couple often seek out privacy to get away from the rest of the
pack.
|
The Den |
After the alpha wolves' courtship and mating, the alpha female begins seeking
out a den site. Often wolves will reuse their den from the previous year. The
alpha female typically chooses a den on higher ground near a source of water. The
den is usually completed three weeks before the pups are born. The gestation
period for wolves is about sixty three days.
|
The Pups |
Pups are born in the spring. The female usually has a litter
of 3 to 10 pups, which are born deaf and blind. They only weigh about
one pound and are unable to regulate their own body temperatures until
approximately 3 weeks of age. The female keeps them warm with her body
and rarely leaves the den. The other pack members take care of the mother
by bringing her food during this time. By the time the pups are 3-4 weeks
of age they can hear and see quite well and they begin to emerge from the den.
The rest of the pack joyfully greets them as they venture outside. They also begin
eating solid food at this time.
All pack members have responsibility in rearing the young. After the bred
female gives birth to her litter, she is ranked even higher than her alpha male partner.
This remains so until the pups are old enough to travel with the pack during hunts, at
which time the alpha male regains his dominance. When the pack goes off to hunt, one
pack member, usually a one or two year old, or the mother, stay behind to guard and
entertain the pups. Upon the pack’s return, the pups mob the adults, licking, biting and
nudging at their mouths. This stimulates the adult to regurgitate partially-digested
food for the pups to eat - which the pups do with great enthusiasm. The pups join
the pack on hunts in the early fall, although they do not fully participate until
they are one year old.
|
Communication |
Wolves communicate in a variety of ways; vocally and with body language.
|
Body Language |
Wolves have very expressive faces and communicate through subtle gestures of the
mouth, ears and eyes. As well, the position of the tail, even the
bearing of the entire body, can communicate volumes.
It is easy to spot the alpha wolf because he carries his tail
in a relaxed curve, holds his head up and walks with a bold stance.
Subordinate wolves show their submission by lowering their heads and tails.
|
Vocally |
Wolves use a wide variety of sounds to cummunicate with each other ranging from
whines and whimpers to snarls and growls. They are also known for their soulful,
melodic howling. Each wolf chooses a different pitch to sing, and when the whole
pack is howling they can sound like many times thier number. Even the puppies join
in, eagerly trying to mimic the adults with their little puppy yips and yelps. Howling
communicates many different things. It is used to communicate the whereabouts of a lone
individual pack member, as a means of strenghtening group unity, and to reinforce
the pack’s territorial boundaries. Wolves will often answer a human howl
with howls from the entire pack.
|
Senses |
The wolf's keenest senses are by far its sense of smell and its hearing.
Vision comes in third, merely confirming what the wolf already knows through
its nose and ears.
|
Smell |
Scent plays a very important role in the life of the wolf, and it has several specialised
glands, one around the anus and other on its back about 7.6 cm (3 inches) in
front of the base of its tail. The scent from these glands is as individual
as our fingerprints.
Wolves have been known to detect prey at distances up to 3 kilometers (1.75 miles).
|
Hearing |
Wolves can hear each other howling in the distance when a human
might hear only silence.
|
Sight |
Even though it ranks behind their sense of hearing and smell, wolves still
have keen eyesight that can detect even the slightest movement in front
of them. Since they are predators their eyes are on the front of
their heads, giving them a little less than 180° vision (Their prey
species can see over 300° of a circle).
|
Good or Evil? |
There are two ends to this debate. One end maintains that the wolf is
evil personified; that it is a ruthless, vicious killer.
The other end maintains that the wolf is altruistic, that it kills
the weak members of a herd for the benefit of the herd.
Both of these are human ideas. The wolf kills to survive. The easiest
prey are the old and the weak. It does not kill for sport, nor does
it kill to keep a herd healthy. It kills to survive.
The wolf is neither good nor evil, it is simply a wolf, being a wolf.
|
Taxonomy |
Kingdom | Animalia |
Phylum | Chordata |
Sybphylum | Vertebrata |
Class | Mammalia |
Order | Carnivora |
Family | Candidae |
Genus | Canis |
Species | lupus |
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