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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.

Quick Facts

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.

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.

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