Appearance
How to Recognise the Nyala in the Field
The nyala is a spiral-horned antelope positioned between a bushbuck and a kudu in size. It is one of the most sexually dimorphic antelopes. Adult animals measure 135–195 cm (53–77 in) in head-and-body length. Males stand up to 110 cm (43 in) at the shoulder, while females reach about 90 cm (3 ft). Males weigh 98–125 kg (216–276 lb) and females 55–68 kg (121–150 lb). The species has a life expectancy of around 19 years.
Coat colour differs strongly between sexes. Females and juveniles show a rusty or rufous brown coat with ten or more white vertical stripes. Males darken with age, developing a dark brown to slate-grey coat with a bluish tone. Stripes fade or disappear entirely in older males. Both sexes display a white facial chevron, a 40–55 cm (16–22 in) bushy tail with a white underside and a continuous dorsal crest from head to tail. Males have an additional line of hair along the chest and belly.
Only males grow horns. These horns are 60–83 cm (24–33 in) long, yellow-tipped and feature one or two twists. The nyala is one of the four species that form the spiral-horned grand slam, together with bushbuck, eland and kudu.
Habitat
Where Nyalas Live and How They Organise Themselves
Nyalas inhabit dense lowland woodlands, thickets and lush river zones. Their natural range extends from southern Malawi through Mozambique and Zimbabwe to eastern South Africa and Eswatini. They prefer areas with fresh water nearby as they need regular access, although they can tolerate seasonal shortages.
They are active mainly in the early morning and late afternoon. However, during cool weather they browse throughout the day, and during the rainy season they may feed at night. They rest in dense cover during the hottest hours. Because of their shy nature, they often stay hidden, and sightings are most common near waterholes.
Nyala herds typically consist of two to ten individuals and may be female-only, male-only or mixed. Adult males often remain solitary. Female herds show close bonds, as females tend to stay near their mothers after calving. The species is alert and communicates danger with a sharp, dog-like bark. They also react to alarm calls from impala, baboon and kudu. Predators include lion, leopard, cheetah, spotted hyena, African wild dog and Nile crocodile.
Behaviour
How Nyalas Feed, Breed and Respond to Threats
Nyalas browse on foliage, fruits, flowers and twigs, and during the rainy season they also graze fresh grass. Their feeding pattern peaks in early morning and late afternoon. Because they rely on water, they choose habitats with dependable sources, yet they can adapt to landscapes with seasonal availability.
Breeding occurs year-round, although mating peaks in spring and autumn. Females reach sexual maturity at 11–12 months, and males at 18 months, though males remain socially immature until around five years. Males attempt to mate for two days of the female’s cycle, but she allows mating for only about six hours. When entering a female herd, a male displays by raising his white dorsal crest, lowering his horns and moving in a stiff posture. Dominance fights between males occur during this time.
Nyalas do not maintain strict territories. Instead, ranges overlap extensively. Both male and female home ranges average around 10 km² (3.9 sq mi), forming a loose network of shared space rather than defended borders.
