Reindeer (Caribou)
Reindeer are a type of deer found in cold climate habitats in North America, Europe, and Asia.
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Cervidae
Genus: Rangifer
Species: R. tarandus
Common Names: Reindeer, Caribou
Reindeer are known for their migrations, which are the longest journeys of any land mammal. Some herds will travel as much as 3,000 miles in a single year, and large herds can contain up to half a million reindeer. However, not all reindeer populations undertake such long travels, and some herds stay in one place year round.
Like all deer, reindeer are plant eaters, with lichens making up a large part of their diet. Reindeers have many predators, including grizzly bears, polar bears, and gray wolves.
Reindeer pregnancy lasts about 230 days. Male reindeer (bulls) will fight with their antlers for the privilege of mating with females (cows).
There are many subspecies (and possibly different species) of reindeer that range in size from about 200 pounds to over 700 pounds. The average reindeer male generally weighs around 400 pounds. They can measure up to seven feet in length and grow to five feet tall at the shoulder.
Reindeer are the only deer species in which both males and females regularly grow antlers. Reindeer antlers are the second largest among living deer species, after those of the moose.
Reindeer have two layers of fur in order to protect them from the cold: a woolly undercoat and a longer outer coat. The color of this fur can vary greatly, from white to gray to dark brown.
Humans have hunted reindeer since prehistoric times. Reindeer appear in cave paintings of ancient Europe. They are still hunted by humans today, used for their meat and fur. In North America, this is mostly done by indigenous people such as the Inuit in Canada, the Kalaallit people of Greenland, and the many Native American peoples of Alaska.
Reindeer are the only deer species that have been domesticated successfully.
Reindeer feature heavily in the tale of Santa Claus, the popular figure who brings toys and gifts to children on Christmas. His sleigh full of presents is said to be pulled by reindeer, with the total number usually given as eight. Their names vary, but the most commonly used are Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner (or Dunder) and Blitzen (or Blixem). A popular Christmas song introduced a ninth reindeer, Rudolph, who helps to guide the sleigh with his bright red nose.
Currently, reindeer are considered a Vulnerable species, though the level of endangerment varies greatly by population and subspecies. Some populations have gone completely extinct within the last hundred years, while others are Endangered.
Many factors contribute to the decline of reindeer populations, including habitat development by humans, and climate change affecting the availability of lichens, the reindeer’s key food source.
References
https://en.wikipedia.org/wiki/Reindeer
Macdonald, David W. (editor). (2006). The Princeton Encyclopedia of Mammals. Princeton, New Jersey: Princeton University Press.
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