- Related Topics:
- gemsbok
- beisa
- scimitar-horned oryx
- fringe-eared oryx
- Arabian oryx
oryx
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What is an oryx?
The oryx is any of three species of large antelopes of the genus Oryx. They are powerfully built, deep-chested animals that live in herds on deserts and dry plains in Africa and the Arabian Peninsula.
The Arabian oryx (Oryx leucoryx) is the smallest, standing roughly 102 cm (40 inches) tall and weighing 75 kg (165 pounds). It is an endangered species that originally lived from Syria to the southern Arabian Peninsula but now survives in captivity and in herds reintroduced into the wild. The gemsbok (Oryx gazella gazella) is the largest, standing up to 138 cm (54 inches) tall and weighing 238 kg (524 pounds). The scimitar-horned oryx (O. dammah) is mostly white except for its reddish brown neck and chest.
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Where do oryx live?
Oryxes are large antelopes that live in herds on deserts and dry plains of Africa and the Arabian Peninsula. The Arabian oryx originally lived from Syria to the southern Arabian Peninsula but now survives in captivity and reintroduced herds. The scimitar-horned oryx used to be found throughout northern Africa but is now virtually extinct in the wild. The three subspecies of O. gazella live in eastern and southern Africa. Gemsbok prefer rocky plains but can survive in rocky hills and dry areas such as the Kalahari Desert.
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What do oryx look like?
Oryxes are powerfully built antelopes with deep chests, short necks, blunt muzzles, and long limbs. While the sexes look similar, females are less muscular than males.
There are three main species of oryx:
* The gemsbok is the largest, standing up to 138 cm tall and weighing 238 kg. It has a gray-brown coat with contrasting black and white markings on its body and face.
* The Arabian oryx is the smallest, 102 cm tall and weighing 75 kg, with a whitish coat and faint dark markings.
* The scimitar-horned oryx is 120 cm tall and weighs 200 kg. It is mostly white, except for its reddish-brown neck and chest.The horns of the gemsbok and Arabian oryx are long and straight. The horns of females are thinner but as long as those of the males.
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What do oryx eat?
Oryxes are classified as coarse grazers, feeding on grasses. They also energetically dig for water-storing roots and tubers. Though they can go without drinking in all but the harshest conditions, they will drink regularly where water is available.
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How do oryx survive in hot and dry environments?
Oryxes are well-adapted to survive in hot and dry environments. They are coarse grazers that feed on grasses and dig for water-storing roots and tubers. Oryxes can go for extended periods without drinking, especially when conditions are harsh, but they will drink regularly if water is available. Certain antelopes, such as oryxes and gazelles, are known for needing little water. For instance, the dorcas gazelle in Sudan relies on the leaves of Acacia bushes for its water intake.
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Why are some oryx species endangered and how are they protected?
Several oryx species face endangerment due to factors like habitat loss and poaching. The Arabian oryx and the scimitar-horned oryx are listed as endangered.
Conservation strategies include:
* Captive breeding programs The last Arabian oryxes were captured in the 1970s and bred in captivity. Reintroduction efforts started in 1982 in Oman but depend on protection from poaching.
* Zoos Zoos are breeding centers for species in danger of extinction. They can restock the wild with zoo-born animals.3 Britannica SourcesCreated from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
oryx, (genus Oryx), any of three large antelopes (family Bovidae, order Artiodactyla) living in herds on deserts and dry plains of Africa and the Arabian Peninsula.
Oryxes are powerfully built and deep-chested with short necks, blunt muzzles, and long limbs. The sexes look alike, although females are less muscular. The gemsbok (Oryx gazella gazella) is the largest; it stands up to 138 cm (54 inches) tall and weighs 238 kg (524 pounds). It also has the most striking coloration: gray-brown with contrasting black and white body and facial markings. The Arabian, or white, oryx (O. leucoryx) is the smallest, 102 cm (40 inches) tall and weighing 75 kg (165 pounds), with only faint dark markings to offset its whitish coat. The scimitar-horned oryx (O. dammah), 120 cm (47 inches) tall and weighing 200 kg (440 pounds), is mostly white except for the reddish brown neck and chest. The horns are long and straight in the gemsbok and the Arabian oryx. Females’ horns are thinner but as long as those of males. The Arabian and scimitar-horned oryxes are listed as endangered species.
The three subspecies of O. gazella live in eastern and southern Africa: the beisa (O. gazella beisa) and fringe-eared oryx (O. gazella callotis) from the Horn of Africa south to Tanzania and the gemsbok in the Karoo region of South Africa. The scimitar-horned oryx, once found throughout northern Africa, was restricted to the southern rim of the Sahara (the Sahel) by the early 1980s and was virtually extinct in the wild by the century’s end. The Arabian oryx once lived in the deserts of the Sinai and Arabian peninsulas and adjacent areas to the north. The last survivors were captured in the early 1970s and bred in captivity. Efforts to reintroduce their descendents, beginning in Oman in 1982, have been partially successful but are dependent on effective protection from poaching.
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Classified as coarse grazers, oryxes feed on grasses and energetically dig for water-storing roots and tubers. They can go without drinking except under the harshest conditions, but they drink regularly where water is available.
Oryxes have an unusual social organization that is adapted to a nomadic existence in desert conditions. Isolation and low population density select against the dispersal of adolescent males, as is usual in social antelopes. Accordingly, oryx herds, which may number up to 300 for the fringe-eared oryx (e.g., in Kenya’s Tsavo National Park), include adults of both sexes. Females and males have separate dominance hierarchies. The alpha bull (or bulls) commands herd movements and enforces the same submissive behaviour from both sexes. Where conditions permit—e.g., where there are permanent water holes and grazing—some oryx bulls maintain individual territories.