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see oryxoryx
, name for several small, horselike antelopes, genus Oryx, found in deserts and arid scrublands of Africa and Arabia. They feed on grasses and scrub and can go without water for long periods. Oryxes are light in color with dark patches on the face and legs.
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(Oryx gazella beisa), an artiodactylic mammal, an East African subspecies of the oryx antelope. Both the males and females have long straight horns (to 1 m) that point backward. The basic body color is light reddish-brown, with black stripes on the head, sides, and extremities. Beisa inhabit the wide open plains of East Africa (to 20° N lat.). They are usually seen in pairs, occasionally in small herds. The period of gestation is about nine months. Beisa are hunted for their meat and hide; they are also an object of sport hunting. The number of beisa in many parts of their habitat has been sharply cut. Portrayals of beisa on ancient Egyptian monuments suggest that they (or perhaps another subspecies of the oryx, the saber horn antelope) were raised earlier in captivity or were tamed.

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MDM Engineering Group Ltd had won the contract to undertake the pre-feasibility study for Sibanye Gold Ltd%s Beisa uranium processing plant project in South Africa.
The Beisa oryx, native to the dry lands of North East Africa, is declining rapidly, already extinct in Eritrea and Uganda and with populations rapidly declining in Kenya.
(1988) and Johnston (1998), Finlay, James, and Maple (1988) used color slides of zebra, cheetahs (Acinonyx jubatus), orangutans, lions, Colobus monkeys (Colobus guereza), gorillas, Oryx antelope (Oryx beisa), and chimpanzees in their study because of the availability of such species, similarity to one another (e.g., orangutans, gorillas, and chimps), and use in previous zoo-related studies.