Amazing
Facts
About the Caribou
G'day folks,
Here are some very interesting facts about a great survivor.
They are the only deer in which
male and females both have antlers—though these are larger in the males than
females and only some females have them.
They live in huge herds as both resident and
migratory populations.
As summer approaches, many reindeer herds of
tens or even hundreds of thousands head north along well trodden annual routes.
Some populations migrate the furthest of any terrestrial mammal, traveling up
to 5,000 km a year.
During migration, herds of cows (females)
leave several weeks before the males, who follow with yearling calves from the
previous birthing season.
Normally travelling about 19–55 km a day
while migrating, the reindeer can run at speeds of 60–80 km/h.
At the end of their journey, they spend the
summer feeding on the abundant grasses and plants of the tundra. In these rich
grounds, an adult reindeer can eat 5 kg of food each day.
Cows have one calf each year, which can stand
after only a few minutes and move on with its mother by the next day.
When the first snows fall each
year, they turn back south to spend the winter in more sheltered climes and
survive by feeding on lichens.
- Reindeer thrive in cold climates. They have hooves that allow them to easily walk on snow and ice unlike deer and moose. Their hollow hairs give them extra insulation from the extreme cold and give increased buoyancy allowing them to easily float. A reindeer can swim at speeds up to 10 km/h and migrating herds will not hesitate to swim across a large lake or broad river.
- Tendons in the Reindeers’ feet slip over the bones producing a clicking sound. During blizzard conditions, detection of the sound is used to keep the herd together.
- Reindeer have large hooves that are big enough to support the animal’s bulk on snow and to paddle it efficiently through the water. The hoof’s underside is hollowed out like a scoop and used for digging through the snow in search of food. Its sharp edges give the animal good purchase on rocks or ice.
- Reindeer have no internal body clock. The animals are missing a “circadian clock” that influences processes including the sleep-wake cycle and metabolism. This enables them to better cope with the extreme Arctic seasons of polar day, when the sun stays up all day, and polar night, when it does not rise.
·
The Grey Wolf is the most effective natural
predator of adult reindeer, especially during the winter. Brown Bears and (in
the rare cases where they encounter each other) polar bears also prey on
reindeer of all ages but are most likely to attack weaker animals such as
calves and sick deer. Golden eagles prey on calves and are the most prolific
hunter on calving grounds. Wolverine will take newborn calves or birthing cows,
as well as (less commonly) infirm adults.
·
Reindeer have been in retreat from humans for
decades and numbers are plummeting around the world. The first global review of their status has found that populations are declining almost
everywhere they live. It is considered that healthy and abundant caribou
populations will not survive in many regions without setting aside large tracts
of land free from industrial development.
·
Several groups of indigenous Arctic and
Sub-Arctic people hunt wild reindeer and herd semi-domesticated reindeer (for
meat, hides, antlers, milk and transportation).
·
Some
scientists believe that the first people to cross the Bering Land Bridge into
North America may have been in pursuit of migratory caribou herds.
·
Even far
outside its range, the reindeer is well known due to the myth, probably
originating in early 19th century America, in which Santa Claus’ sleigh is
pulled by flying reindeer, a popular secular element of Christmas. These
reindeer were first named in the 1823 poem “A Visit from St. Nicholas” where
they are called Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Dunder, and
Blixem. Dunder was later changed to Donder and—in other works—Donner (in
German, “thunder”), and Blixem was later changed to Bliksem, then Blitzen
(German for “lightning”). Some consider Rudolph as part of the group as well,
though he was not part of the original group but was added by Robert L. May in
1939 as “Rudolph the Red-Nosed Reindeer”.
Clancy's comment: Very tasty as well.
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