About Oryx beisa (Rüppell, 1835)
The East African oryx, scientifically named Oryx beisa (Rüppell, 1835), measures just over one metre at the shoulder and weighs approximately 80 kg (175 lb). Its coat is grey, with a white underside; a black stripe separates the grey upper coat from the white underside. Black stripes also appear where the head joins the neck, along the nose, from the eye to the mouth, and on the forehead. It has a small, chestnut-coloured mane, and thin, straight ringed horns. Both sexes have horns, which typically measure 75–80 cm (30–31 in) in length. Compared to the East African oryx, the gemsbok has an entirely black tail, a black patch at the base of the tail, and more black markings on the legs (including a patch on the hindlegs) and lower flanks. The smaller Arabian oryx is mostly white overall, with largely dark legs.
