Lesser kudu kudu and nyala form a clade, and collectively separated from the sister clade 13.8 million years ago. The lesser kudu has 38 diploid chromosomes. However, unlike others in the subfamily Tragelaphinae, the X chromosome and Y chromosome are compound and each is fused with one of two identical autosomes. The lesser kudu is a spiral-horned antelope. The head-and-body length is typically between . Males reach about at the shoulder, while females reach . Males typically weigh and females . The bushy tail is long, white underneath and with a black tip at the end. Distinct signs of sexual dimorphism are
Lesser kudu cover has protected it from the risks of poaching. For instance, the lesser kudu is widespread in the Ogaden region, which is rich in dense bush, despite reckless hunting by local people. However, rinderpest outbreaks, to which the lesser kudu is highly susceptible, have resulted in a steep decline of 60% in the animal's population in Tsavo National Park in Kenya. Overgrazing, human settlement, and loss of habitat are some other threats to the survival of the lesser kudu. The total population of the lesser kudu has been estimated to be nearly 118,000, with a decreasing trend in populations. The