Mountain sheep
| Argali | |
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| Argali (Ovis ammon) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | Bovidae |
| Subfamily: | Caprinae |
| Genus: | Ovis |
| Species: | O. ammon |
| Binomial name | |
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Ovis ammon (Linnaeus, 1758) |
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| Range of the argali subspecies | |
The argali, or the mountain sheep (species Ovis ammon) is a wild sheep that roams the highlands of Central Asia (Himalaya, Tibet, Altay).
It is the largest species of wild sheep. The North American bighorn sheep may approach comparable weights but is normally considerably outsized by the argali. Argali stand 85 to 135 cm (3 to 4 ft) high at the shoulder and measure 136 to 200 cm (4 to 7 ft) long from the head to the base of the tail. The female, or ewe is the smaller sex by a considerable margin, sometimes weighing less than half as much as the male, or ram. The ewes can weigh from 43.2 to 100 kg (95 to 220 lb) and the rams typically from 97 to 328 kg (214 to 723 lb), with a maximum reported mass of 356 kg (785 lb). The Pamir argali (also called Marco Polo sheep, for they were first described by that traveler), O. a. polii, is the largest race on average, regularly measuring more than 180 cm (5.9 ft) long without the tail, and is less sexually dimorphic in body mass than most other subspecies. The argali has relatively the shortest tail of any wild goat-antelope or sheep, with reported tail lengths of 9.5–17 cm (3.7–6.7 in).
The general coloration varies between each animal, from a light yellow to a reddish-brown to a dark grey-brown. Argali or nyan from the Himalayas are usually relatively dark, whereas those from Russian ranges are often relatively pale. In summertime, the coat is often lightly spotted with a salt-and-pepper pattern. The back is darker than the sides, which gradually lighten in color. The face, tail and the buttocks are yellowish-white. The male has a whitish neck ruff and a dorsal crest and is usually slightly darker in color than the female. Males have two large corkscrew horns, some measuring 190 cm (6.2 ft) in total length and weighing up to 23 kg (51 lb). Males use their horns for competing with one another. Females also carry horns, but they are much smaller, usually measuring less than 50 cm (20 in) in total length.
Currently, 9 subspecies of argali are recognized:
Some sources classify mouflon as Ovis ammon musimon, but DNA testing has not supported this. Several subspecies of argali have been genetically tested for mtDNA and one study found the subspecies O. a. ammon, O. a. darwini and the urial subspecies, O. vignei bochariensis grouped closely, while the subspecies O. a. collium and O. a. nigrimontana grouped with the urial subspecies O. vignei arkal.
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Wikipedia