Hirola (Beatragus hunteri) lives in dry grassland across Kenya-Somalia border. It feeds on grasses and leaves. Its conservation status is Critically Endangered.
Fascinating facts about the Hirola
- If the hirola disappears, it would erase an entire mammalian genus from mainland Africa for the first time in modern human history. The antelope is the only living member of the genus Beatragus, and today only 300-500 individuals survive in the wild, with none in captivity. This razor-thin global population means that every loss pushes a whole evolutionary branch toward oblivion, underscoring why protecting the remaining hirola is a race against the extinction of a unique lineage.
- The hirola packs a surprising punch for its size: adults stand 99-125 cm tall at the shoulder (about 3.3-4.1 ft) and weigh 73-118 kg (161-260 lb). Their bodies stretch 1.2-2 m long, while the sharp, lyrate horns can reach 44-72 cm (17-28 in). Even the tail can be up to 45 cm (18 in). These concrete dimensions show the animal is a medium-sized antelope.
- Male hirola stake out territories as large as 7 sq km (2.7 sq mi), marking them with dung, gland secretions and scraped soil. In contrast, nursery herds roam far wider, their home ranges spanning 26 to 164.7 sq km (10.0 to 63.6 sq mi) with an average of 81.5 sq km (31.5 sq mi). These overlapping scales of space use reveal a social system where dominant males defend limited prime pasture while families need vast grazing grounds.
- Hirola can survive without drinking for long stretches. In 674 observations, they were seen drinking only 10 times (1.5 % of sightings), all during the peak of the dry season. Yet they grazed on short green grass around waterholes in 392 of those observations (58 %). This pattern shows they do not need surface water but are drawn to the fresh growth that water sources stimulate, a behavior that can mislead observers into thinking they are water-dependent.
- Conservationists have tried to rebuild numbers by moving hirola into protected parks. The 1963 translocation released 30 animals into Tsavo East, and a follow-up release in 1996 added another 29, at least six of which were pregnant. By December 1995 the park held at least 76 hirola; a year later the count was 77, and it remained around 76 through 2011. More recently, the Ishaqbini Hirola Conservancy's 23 km² fenced sanctuary, created in 2005, now supports a breeding herd of 48 individuals, showing that small, well-managed refuges can sustain viable groups.
Sources
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At a glance
RangeKenya-Somalia border
HabitatDry grassland
DietGrasses and leaves
About the Hirola
In the parched landscapes of eastern Africa, a fleeting glimpse of the hirola's tawny coat is a rare and precious sight, as this elusive antelope glides effortlessly across the arid terrain, its large, dark eyes ever-vigilant for the predators that lurk in the shadows. With a gentle, loping gait, the hirola navigates the scrubby thickets and open grasslands, its slender legs carrying it with a quiet elegance that belies the desperate fragility of its existence. As the last remnants of a once-thriving population, these critically endangered creatures embody a haunting beauty, their very survival a testament to the enduring power of life in the harshest of environments.
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