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Gemsbok
Oryx gazellaThe antelope of the red dunes.
The gemsbok is a desert specialist of Southern Africa - a powerfully built oryx with long, straight horns and a bold black-and-white facial mask. It is the largest of the oryx antelopes and Namibia's national animal, supremely adapted to the Kalahari and Namib. Importantly, it is a Southern African species and does not occur in Tanzania or the rest of East Africa; the oryx you may see on a safari in East Africa is the separate Beisa oryx.
Gemsbok Quick Facts
What Is the Gemsbok?
The Gemsbok (Oryx gazella) - also called the South African oryx - is the largest of the oryx antelopes and a true desert specialist of Southern Africa. It belongs to the subfamily Hippotraginae, the "horse antelopes", along with the roan and sable.
It is important to be precise about geography: the gemsbok is confined to the arid south of the continent (Namibia, Botswana, South Africa, Zimbabwe). The similar oryx of East Africa - including northern Tanzania - is a separate species, the Beisa oryx (Oryx beisa). The gemsbok is Namibia's national animal and appears on that country's coat of arms.
Why “Gemsbok”?
"Gemsbok" comes from Afrikaans, which borrowed it from the Dutch name for the male of the Northern Chamois (a European goat-antelope). The scientific name is more literal: Oryx is the genus of the straight-horned antelopes, and gazella was applied because early naturalists thought the animal resembled a gazelle.
Signature Features
A gemsbok is unmistakable. The coat is a pale grey-tan with a white belly and rump, set off by a bold black-and-white facial mask - stripes running from the base of the horns down to the muzzle and sweeping back across the eyes and cheeks. A black stripe runs down each flank and along the spine, and the legs are marked with black "stockings" above white lower portions. The long tail is black-tipped.
Both sexes carry the famous long, straight, ringed horns that project upward and slightly back. The build is stocky, with a thick, horse-like neck and muscular shoulders.
How Big Is a Gemsbok?
Gemsbok stand about 1.15-1.25 m at the shoulder and measure roughly 1.8-2.4 m from head to tail (the tail itself is 45-90 cm). They are the heaviest of the oryxes.
Weight runs from about 100-210 kg in females to 180-240 kg in males (some large bulls approach 250 kg). By comparison, the East African Beisa oryx is noticeably lighter.
Horns & Defence
The gemsbok's long, straight, rearward-pointing horns are present in both sexes, ringed at the base. They average around 85 cm and can reach a record ~150 cm. Females' horns are typically longer and slimmer; males' are thicker and shorter, better suited to shoving matches with rival males.
These are serious weapons. A cornered gemsbok lowers its head and charges with remarkable accuracy, and there are documented cases of gemsbok fatally wounding lions and other predators.
Habitat & Range
Gemsbok occupy arid and semi-arid savanna, thorn scrub, stony plains, dunes and true desert - especially the Kalahari and Namib. They avoid dense woodland and high-rainfall regions.
Their desert adaptations are extraordinary: they can survive without free-standing water for months, obtaining moisture from roots, tsamma melons and wild cucumbers. A network of blood vessels in the nose (a carotid rete mirabile) cools blood flowing to the brain, letting them stay active when air temperatures top 45°C. They can even raise their body temperature to avoid sweating and save water.
Where to See the Gemsbok
The gemsbok is native to the arid regions of Southern Africa. The core range is Namibia (the Kalahari and Namib; an estimated ~373,000 animals in Namibia alone), Botswana (the Kalahari), South Africa (Northern Cape, North West, Free State; Kgalagadi Transfrontier Park) and Zimbabwe, with former range in Angola.
Kalahari
Botswana and Namibia's red dunes - the classic gemsbok landscape, often photographed at sunrise.
Etosha Pan
Namibia's famous salt pan and its surrounding waterholes draw large herds in the dry season.
Namib Desert
The dunes of Sossusvlei and the NamibRand reserve hold gemsbok against a towering sand backdrop.
Kgalagadi
The Kgalagadi Transfrontier Park (Botswana/South Africa) is a premier arid-country reserve.
Not a Tanzanian species. The gemsbok does not occur in Tanzania or anywhere in East Africa. If you are on a Tanzania safari and hope to see an oryx, the animal you may encounter is the Beisa oryx (Oryx beisa) - a distinct species found in the north of the country and across the Horn of Africa. Read about the Beisa oryx here.
Behavior & Social Life
Gemsbok are crepuscular - most active at dawn and dusk, when temperatures are tolerable and predator detection is easiest - and they rest in shade through the hottest part of the day. They are not bound to a fixed daily schedule.
Social life centres on mixed herds of 10-40 animals made up of a dominant male, a few subordinate males, and females with young. Adult males also form bachelor herds, and older bulls may become lone territorial individuals that defend a patch with dung middens and attempt to hold females. Female and juvenile herds are more nomadic, wandering across several male territories in search of food and water. When threatened, a gemsbok will often stand its ground and charge rather than flee.
Diet & Feeding
Gemsbok are primarily grazers, eating grasses when available, but they switch to browsing shrubs, herbs and roots as the dry season bites. They will dig up to a metre deep for roots and tubers, and they supplement their water by eating tsamma melons and wild cucumbers - which can supply all the moisture they need (about 3 litres per 100 kg of body weight per day).
This diet-plus-physiology combination lets them go many months without drinking, a key reason they thrive where few other large herbivores can.
Predators & Defense
Adult gemsbok are formidable and have few enemies, but lions are their main predator (a risky hunt, given the oryx's horns). Leopards, cheetahs, spotted hyenas and African wild dogs mostly take calves or weak individuals, and humans hunt them for meat and trophies.
Gemsbok defend themselves with those spear-like horns and are known to injure or even kill attacking predators.
Young & Lifespan
After a gestation of about 8.5-9 months (around 270 days), a single calf is born, weighing roughly 9-15 kg. The mother leaves the herd to calve in cover and hides the calf, returning to nurse; it is weaned at about 3-4 months and joins a nursery group.
Gemsbok breed year-round, with births often peaking after good rains. Young mature at roughly 1.5-2 years; lifespan is about 18-20 years in the wild (up to ~22 in captivity).
Conservation Status
The gemsbok is listed as Least Concern on the IUCN Red List and remains numerous and, in parts of its range, increasing - for example Namibia alone holds an estimated 373,000 animals. Much of the population lives on private and communal land as well as in protected areas.
The main pressures are habitat loss to agriculture and settlement, competition with livestock, and hunting. Conservation areas, private game reserves and reintroductions keep populations healthy across Southern Africa.
Safari Experience
For a safari-goer, the gemsbok is the signature animal of Southern Africa's arid parks - a silhouette on red dunes at sunrise, or a herd converging on a remote waterhole at dusk. The best experiences are in the Kalahari, Etosha, the Namib and Kgalagadi, where open-country driving and patient waiting at waterholes pay off.
Be clear-eyed about geography: you will not see a gemsbok on a Tanzania safari. If your itinerary is in East Africa, look instead for the Beisa oryx. And remember the gemsbok is a wild, potentially dangerous animal - give those horns respect.
Comparisons
Three oryx species help separate fact from confusion. All are straight-horned desert antelopes, but their geography differs sharply:
| Feature | Gemsbok | Beisa Oryx | Scimitar Oryx |
|---|---|---|---|
| Scientific name | Oryx gazella | Oryx beisa | Oryx dammah |
| Range | Southern Africa | East Africa (incl. N. Tanzania) | North Africa (reintroduced) |
| Horns | Straight, both sexes | Straight, both sexes | Curved backward, both sexes |
| Black flank stripe | Present | Fainter | Absent |
| Status | Least Concern | Least Concern | Extinct in wild (reintroduced) |
Did You Know?
Namibia's emblem
The gemsbok features on Namibia's coat of arms; the country holds an estimated 373,000 of them.
Desert survivor
It can go many months without drinking, getting water from melons, roots and cucumbers.
Brain-cooled
A nasal blood network (carotid rete) cools blood to the brain even in 45°C heat.
Lethal horns
A precise horn stab has been known to kill lions and other predators.
Both sexes armed
Females' horns are often longer and slimmer than the males' - and much prized.
Not an East African
The oryx of Tanzania is the Beisa oryx, a different species from the gemsbok.
At first light the Kalahari turns copper, and a gemsbok stands on the ridge like a punctuation mark - black-and-white face turned to the wind, horns sketched against the sky. It looks less like prey than like the desert's own idea of composure.
Gallery
Frequently Asked Questions
Oryx gazella. It is also called the South African oryx and is the largest of the oryx antelopes.
Across the arid and semi-arid regions of Southern Africa - Namibia, Botswana, South Africa and Zimbabwe - especially the Kalahari and Namib deserts. They are not found in East Africa.
No. The gemsbok is a Southern African species. The oryx you may see in northern Tanzania is the Beisa oryx (Oryx beisa), a separate species. See our Beisa oryx page.
They mainly graze grasses but browse shrubs and dig for roots in the dry season. They eat tsamma melons and wild cucumbers for water and can go months without drinking.
They get most moisture from food, use a nasal blood network (carotid rete) to cool the brain, tolerate high body temperatures to save water, and avoid the midday heat by being active at dawn and dusk.
It can reach speeds of up to 60 km/h (37 mph), using zig-zag sprints to outmanoeuvre predators in the open.
Yes - both males and females carry long, straight, ringed horns; females' are usually longer and slimmer, males' thicker.
They form mixed herds of 10-40 with a dominant male, plus bachelor male herds and lone territorial bulls. Females and young form more nomadic groups. They are most active at dawn and dusk.
Lions are the main predator; leopards, cheetahs, spotted hyenas and African wild dogs take mainly calves, and humans hunt them. Adults defend themselves with their horns.
They stand about 1.15-1.25 m at the shoulder, measure roughly 1.8-2.4 m long, and weigh 100-240 kg depending on sex and age.
Least Concern on the IUCN Red List - numerous and stable across Southern Africa, with an estimated 373,000 in Namibia alone.
References & Further Reading
- African Wildlife Foundation - Oryx: Gemsbok (Oryx gazella) is the largest oryx; weight 180-240 kg; shoulder 115-125 cm; herds up to 600; Namibia population ~373,000; the Beisa oryx is the East African form (Ethiopia to NE Uganda/Kenya, with the fringe-eared oryx reaching central Tanzania).
- Wikipedia - Gemsbok: native to the arid regions of Southern Africa (Botswana, Namibia, South Africa, Zimbabwe, formerly Angola); Kalahari and Namib; Least Concern; speed up to 60 km/h; introduced to the Chihuahuan Desert, USA.
- Animal Diversity Web - Oryx gazella: physical description (shoulder 115-125 cm; body 180-195 cm; females 180-225 kg, males 180-240 kg; horns 60-150 cm), habitat (desert/dune, savanna), and water-independent ecology.
- Encyclopaedia Britannica - Gemsbok: bulls 230-250 kg, cows ~200 kg; horns to 120 cm; used defensively against lions and wild dogs.
- Endangered Wildlife Trust - Gemsbok: IUCN Least Concern; numerous and widespread across the arid assessment region, with populations increasing on protected land (1992-2015).
