Saola is the correct common name.
This is actually one of the more recent large animals discovered by non native people in the area. The Saola was discovered in 1992. It is located in the forested areas between Laos and Vietnam.
One of the sad things about this animal is that it hasn't been able to survive too well yet in captivity. Hopefully one day we will be able to get things figured out and give this species some extra help in surviving in the world.
Most of the information known about this animal actually comes from one captive animal.
Since the Scientific name was mentioned, the first part (genus) actually refers to it being a false oryx. Oryxes when viewed from the side gives the imagery of a unicorn and in fact is probably the way the legend of the unicorn was created. The second part (species) refers to two provinces the animal is from.
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Tango's animal is indeed a Tasmanian Devil.
Even though this animal has a fierce reputation, it actually is a shy and cautious animal. The only times it gets vicious is when the animal is threatened or competing.
Even though this animal is found in Tasmania now, it originally was found on Australia.