Mammals of the World
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Caribou

Rangifer tarandus

Order
Artiodactyla
Family
Cervidae
Genus
Rangifer
IUCN status
VU
Distribution
Norway|Finland|Russia|Mongolia|Canada|Greenland|United States
Realm
Palearctic|Nearctic

Other names: Reindeer

About this species

Diet
Lichens in winter; willow and birch leaves, sedges, and grasses in warmer months
Habitat
Tundra, boreal forest, and mountain regions
Range
Circumpolar northern Eurasia and North America, including Mongolia

Reindeer is the Eurasian name for Rangifer tarandus; wild North American animals are commonly called caribou. It is a cold-adapted deer with a dense coat, broad hooves, and antlers in both sexes, although their form and timing vary among populations and between males and females. Coat colour and body size also vary widely across the circumpolar range, so measurements from one regional form should not be applied to Mongolia without a population-level source. It is the only living representative of the genus Rangifer. (Wikipedia, general species account)

The species occupies Arctic, subarctic, tundra, boreal, and mountain environments across northern Eurasia and North America. Winter feeding centres on lichens, while willow and birch leaves, sedges, and grasses become important during warmer months. A Mongolian national biodiversity report lists Rangifer tarandus among the country's widely distributed Holarctic mammals, establishing national occurrence but not a precise viewing site. The sources opened for this entry did not provide dependable Mongolia-specific migration timing, herd structure, or locality information, so those details are omitted. (Wikipedia, general species account; Mongolia First National Report to the Convention on Biological Diversity)

Description: Wildlife of Mongolia guide, Wildlife of Everywhere (wildlifeofeverywhere.com); general species information paraphrased from Wikipedia (CC BY-SA)

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CC-BY-4.0 — Bering Land Bridge National Preserve — via iNaturalist (source)