The kudus are two species of antelope of the genus Tragelaphus: Lesser kudu, Greater kudu. The two species look similar, though greaters are larger than lessers. A large adult male greater kudu stands over 5 feet (1.5 m) tall at the shoulder, and a large male lesser kudu stands about 4 feet (1.2 m) tall. Males of both species have long horns, which point upward and slightly back, curling in a corkscrew shape. As in many other antelopes, 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 quickly and at six months are largely independent of their mothers. (Source: Wikipedia.org, CC BY-SA)