Mammals
Beira
Dorcatragus megalotis · also called beiras
Bounding across steep, rocky mountain terrain on a build reminiscent of the klipspringer, a beira stands alone as the only living member of its genus, its unusually large ears a familiar sight across the arid highlands of the Horn of Africa.
Overview
The beira, Dorcatragus megalotis, is a small antelope native to steep, rocky mountain habitat across the Horn of Africa, particularly Somalia, Ethiopia, and Djibouti. Its unique taxonomic status as the sole member of its genus, unusually large ears, and klipspringer-like rock-climbing ability make it one of the more distinctive small antelope species found anywhere in East Africa.
A rare case of convergent rock-climbing design
Though not closely related to the klipspringer of southern and eastern Africa, the beira has independently arrived at a similar solution for surviving steep, rocky terrain, a striking example of two unrelated antelope lineages converging on comparable adaptations.
Status
Vulnerable, with populations declining across the Horn of Africa due to habitat degradation, hunting, and regional instability.
Beira: common questions
Why is the beira taxonomically unique?
This species is the sole living member of its genus, Dorcatragus, making it taxonomically distinct among small African antelope, similar in status to the grey rhebok within its own genus.
Why does the beira have such large ears?
This species has unusually large ears relative to its body size, likely aiding both heat dissipation in its hot, rocky habitat and early detection of approaching predators.
Is the beira related to the klipspringer?
Not especially closely, though this species moves across steep, rocky terrain in a similar bounding manner to the klipspringer, an example of similar adaptations evolving separately in two distinct antelope lineages.
Do female beira have horns?
No, this species has short, ridged horns present only on males, angled slightly backward and relatively small compared to the horns of many other antelope species.