Saola
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Saola |
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Pseudoryx nghetinhensis Dung, Giao, Chinh, Tuoc, Arctander, MacKinnon, 1993 |
The Saola or Vu Quang ox, also, infrequently, Vu Quang bovid (Pseudoryx nghetinhensis), one of the world's rarest mammals, is a forest-dwelling bovine found only in Vietnam (Vu Quang Nature Reserve) and in Laos, near the Vietnam-Laotian border. Its name Saola means spindle-[horned]. The scientific epithet nghetinhensis refers to the two Vietnamese provinces of Nghe An and Ha Tinh while Pseudoryx acknowledges the animal's similarities with the Arabian or African oryx. The Hmong natives call this beast saht-supahp, a term derived from Lao meaning "the polite animal", because it moves quietly through the forest.
Saolas have only been known to Western science since 1992, from several pairs of unusual horns obtained in Vietnam. Chromosomic analysis has since revealed that this is a new ruminant genus, related to cows, anoas, kudus or elands. It is still uncertain whether they are cattle, antelope or goats. It is not known how many of this species exist, as only 11 have been recorded alive.
They can occasionally be viewed at General Cheng's zoo in Lak Xao, Laos.
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[edit] Habitat and distribution
The saola occurs in the Annamite Range's moist forests and the Eastern Indochina dry and monsoon forests. They have been spotted in steep river valleys at about 300 to 1800 m above sea level. These regions are distant from human settlements, covered primarily in evergreen or mixed evergreen and deciduous woodlands. The species seems to prefer edge zones of the forests.
Saolas stay in mountain forests during the wet seasons, when water in streams and rivers is abundant, and move down to the lowlands in winter. They are shy and never enter cultivated fields or come close to villages. To date, all known captive saolas have died, leading to the belief that this species cannot live in captivity.
[edit] Description
The saola stands about 85 cm at the shoulder and weighs approximately 90 kg. The coat is a dark brown with a black stripe along the back. Its legs are darkish and there are white patches on the feet, and white stripes vertically across the cheeks, on the eyebrows and splotches on the nose and chin. All saolas have slightly backward-curved horns, which grow to half a metre in length.
Local populations report having seen saolas traveling in packs of two or three, rarely more.
[edit] Diet
They are reported to eat small leafy plants—especially fig leaves, and stems along rivers. Saolas generally live in small groups of less than five animals. The animal seems to have a browsing diet, considering its small incisors.
[edit] Threat
The major threat is hunting—the species' meat being highly appreciated by local people—and degradation of its forest habitats in the region.
[edit] Saola Stamps Issued in Vietnam
[edit] See also
Other rarely seen big mammals of the Indochina peninsula:
[edit] References
- Timmins et al (2005). Pseudoryx nghetinhensis. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes a range map and justification for why this species is critically endangered
[edit] External links
- ARKive - images and movies of the saola (Pseudoryx nghetinhensis)
- Saola factsheet at Ultimate Ungulate
- "A new cow - a new species of ox, the pseudoryx, found in Southeast Asia - 1993 - The Year in Science", from Discover, Jan. 1994.
- The Vu Quang Bovid at BrainBox
- Vu Quang Ox - Pseudoryx nghetinhensis from the United Nations Environment Programme World Conservation Monitoring Centre
- "A new species of living bovid from Vietnam" June 1993 article from Nature