Saola
The elusive 'Asian unicorn' of the Annamite forests.
The saola (Pseudoryx nghetinhensis), also called the spindlehorn, Asian unicorn, or infrequently, Vũ Quang bovid, is a forest-dwelling bovid native to the Annamite Range in Vietnam and Laos. It was first described in 1993 following a discovery of remains in Vũ Quang National Park. The saola is the only species in the genus Pseudoryx and the earliest diverging member of the tribe Bovini, placing buffalo and cattle as its closest relatives.
- Scientific Name
- Pseudoryx nghetinhensis
- Family
- Bovidae
- Habitat
- Annamite Mountains (Vietnam/Laos)
- Conservation Status
- Critically Endangered
- Discovery Year
- 1992
- Diet
- Herbivore/Folivore
Lore & Background
The saola was discovered in May 1992 when a survey team procured a skull with long, pointed horns from a local hunter. The WWF officially announced the discovery on 17 July 1992. The scientific name Pseudoryx nghetinhensis refers to its resemblance to the oryx and the Vietnamese provinces of Nghệ An and Hà Tĩnh. The Hmong people in Laos call it saht-supahp, meaning 'the polite animal', because it moves quietly through the forest. A 2025 genomic analysis revealed the saola split into two populations at least 20,000 years ago, separated by climatic changes at the end of the last ice age.
In Their Own Story
Mist clung to the limestone karsts of the Annamite Range, blurring the line between earth and sky. A rustle in the ferns broke the silence, not by wind, but by weight. Through the gray veil, a pair of dark eyes watched. Two long horns emerged from the foliage, parallel as spears, framing a face marked with stark white stripes. The Saola paused, ears swiveling to catch the distant snap of a twig or the whisper of a human voice. It knew the danger that walked on two legs. With a fluid motion, it stepped back into the shadows, dissolving into the green gloom before a camera could ever capture its breath.
Reader's Guide
Saola live in restricted areas of high-altitude wet evergreen forest and have probably always had a relatively low population density. They are listed as critically endangered by the IUCN, with an estimated population of 50–300 individuals as of 2015. They are heavily threatened by snares intended to trap other animals and to a lesser extent by habitat destruction. There is concern that the species may already be extinct, and extinction has been described as 'inevitable' within 10 years from 2025 without intervention. Observations of live saola have been few and far between, restricted to the Annamite Range.
Did You Know?
- The first photograph of a living saola was taken in captivity in 1993; the most recent was taken in 2013 by a movement-triggered camera in central Vietnam.
- Saola have been kept in captivity multiple times, but only for short periods as they died within weeks to months.
- The saola is the earliest diverging member of the tribe Bovini, which includes buffalo and cattle.
- The name 'saola' means 'spinning-wheel post horn' in a Tai language of Vietnam.
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