The scientific name of this species is Pseudoryx nghetinhensis. This species is also known as spindlehorn, siola, Vu Quang ox, Asian unicorn, infrequently and the Vu Quang bovid. This type of species is one of the rarest large mammals in the world. Saola was first found in 1992 in Vietnam's Animate Range.
This species is elusive and that is why Saola is rarely known as the Asian Unicorn. The Saola is one of the rarest large terrestrial mammals on Earth. This species has often been imprisoned. Camera traps set by the Vietnam government's Department of Forest Conservation and the WWF were photographed in 1999 of a wild Saola living in the wild. The population of Saola is difficult to determine with any accuracy.