The scimitar-horned oryx followed suit, while the addax became critically endangered. While the addax is spiral-horned, the scimitar oryx has straight, long horns. The addax is a spiral-horned antelope. This section included two Cuvier's gazelles, an addax and a springbok. Ancient Egyptians kept herds of gazelles and addax for meat, and occasionally pets. The other common names of addax are "white antelope" and "screwhorn antelope". These pictures show addax and some other antelopes tied with ropes to stakes. The addax inhabits arid regions, semideserts and sandy and stony deserts. The zoo also plays a key part in addax and eastern bongo conservation. The natural habitat of the addax are arid regions, semideserts and sandy and stony deserts. A large enclosure containing a large herd of addax. It is placed in the monotypic genus "Addax" and family Bovidae. Decrease in the population of the addax has begun notably since the mid-1800s. In 2010, Agag started competing in GP3 with the Addax GP3 Team. The scientific name of the addax is "Addax nasomaculatus".