Like many other antelope, male kudus can be found in bachelor groups, but they are more likely to be solitary. Their dominance displays tend not to last long and are generally fairly peaceful, consisting of one male making himself look big by making his hair stand on end. When males do have a face-off, they will lock their horns in a competition to determine the stronger puller; kudus' necks enlarge during the mating season for this reason. Sometimes two competing males are unable to unlock their horns and, if unable to disengage, will die of starvation or dehydration. Males are seen with females only in the mating season, when they join in groups of 5–15 kudus, including offspring. Calves grow very quickly and at six months are fairly independent of their mothers.
A pregnant female will leave the herd to give birth to a single offspring. She will leave the newborn lying hidden for 4–5 weeks while coming back only to nurse it, which is the longest amount of time for any antelope species. Then the calf will start meeting its mother for short periods. At 3 or 4 months, the calf will be with its mother constantly, and at about six months they will permanently join the group.
When threatened, the kudu will often run away rather than fight. Wounded bulls have been known to charge the attacker, hitting the attacker with their sturdy horn base rather than stabbing it. Wounded females can keep running for many miles without stopping to rest for more than a minute. They are great kickers and are capable of breaking a wild dog's or jackal's neck or back. They are good jumpers and can clear a 5-foot fence from a standing start.
Other spiral horns:
Common elands are spiral-horned antelopes. They are sexually dimorphic, with females being smaller than the males.Females weigh 300–600 kg (660–1,320 lb), measure 200–280 cm (79–110 in) from the snout to the base of the tail and stand 125–153 cm (49–60 in) at the shoulder. Bulls weigh 400–942 kg (882–2,077 lb), are 240–345 cm (94–136 in) from the snout to the base of the tail and stand 150–183 cm (59–72 in) at the shoulder. The tail is 50–90 cm (20–35 in) long.Male elands can weigh up to 1,000 kg (2,200 lb).
Their coat differs geographically, with elands in north Africa having distinctive markings (torso stripes, markings on legs, dark garters and a spinal crest) that are absent in the south. Apart from a rough mane, the coat is smooth. Females have a tan coat, while the coats of males are darker, with a bluish-grey tinge. Bulls may also have a series of vertical white stripes on their sides (mainly in parts of the Karoo in South Africa). As males age, their coat becomes more grey. Males also have dense fur on their foreheads and a large dewlap on their throats.
Both sexes have horns with a steady spiral ridge (resembling that of the bushbuck). The horns are visible as small buds in newborns and grow rapidly during the first seven months. The horns of males are thicker and shorter than those of females (males' horns are 43–66 centimetres (17–26 in) long and females' are 51–69 centimetres (20–27 in) long), and have a tighter spiral. Males use their horns during rutting season to wrestle and butt heads with rivals, while females use their horns to protect their young from predators.
The common eland is the slowest antelope, with a peak speed of 40 kilometres (25 mi) per hour that tires them quickly. However, they can maintain a 22 kilometres (14 mi) per hour trot indefinitely. Elands are capable of jumping up to 2.5 metres (8 ft 2 in) from a standing start when startled
The nyala is mainly active in the early morning and the late afternoon. It generally browses during the day if temperatures are 20–30 °C (68–86 °F) and during the night in rainy season. As a herbivore, the nyala feeds upon foliage, fruits and grasses, with sufficient fresh water. A shy animal, it prefers water holes rather than open spaces. The nyala does not show signs of territoriality, and individual areas can overlap each other. They are very cautious creatures.
Old males live alone, but single sex or mixed family groups of up to 10 individuals can be found. These inhabit thickets within dense and dry savanna woodlands. The main predators of the nyala are lion, leopard and Cape hunting dog, while baboons and raptorial birds hunt for the juveniles.
Mating peaks during spring and autumn. Males and females are sexually mature at 18 and 11–12 months of age respectively, though they are socially immature until five years old. After a gestational period of seven months, a single calf is born.
Only males have horns, 60–83 cm (24–33 in) long and yellow-tipped. It exhibits the highest sexual dimorphism among the spiral-horned antelopes.
The bushbuck is the most widespread antelope in Sub-Saharan Africa, and is found in rain forests, montane forests, forest-savanna mosaics and bush savannaforest and woodland. Recently, genetic studies have shown that the bushbuck is, in fact, a complex of two geogrThe bushbuck bull is regarded by sports hunters as the most dangerous medium-size antelope, as it will hide in the bush after being wounded and charge the hunter when he comes looking for it, impaling the hunter with its sharp horns aphically and phenotypically distinct species.
Bushbuck stand about 90 centimetres at the shoulder and weigh from 45 to 80 kilograms (depending on sex). Bushbuck have a light brown coat, with up to seven white stripes and white splotches on the sides. The white patches are usually geometrically shaped and on the most mobile parts of their body such as the ears, chin, tail, legs and neck. The muzzle is also white and horns are found only on the males and they can reach over half a metre with only one twist. At 10 months old, young males sprout horns that are particularly twisted and at maturity form the first loop of a spiral.
Bushbuck mainly browse, but supplement their diet with any other plant matter that they can reach. Bushbuck are active around 24 hours a day, but tend to benocturnal near human habitations. Bushbuck tend to be solitary, though some live in pairs.