Greater kudu average length of , with the record being . They diverge slightly as they slant back from the head. The horns do not begin to grow until the bull is between the age of 6–12 months, twisting once at around 2 years of age, and not reaching the full two and a half twists until they are 6 years old; occasionally they may even have 3 full turns. This is one of the largest species of antelope. Bulls weigh , with a maximum of , and stand up to tall at the shoulder. The ears of the greater kudu are
Lesser kudu 36% standing and lying, and 29% in roaming. As the thinnest tragelaphine, the lesser kudu can move through dense vegetation with ease. The lesser kudu is a shy and wary animal. When alarmed, the animal stands motionless, confirming any danger. If it senses any approaching predator, it gives out a short sharp bark, similar to the bushbuck's, then makes multiple leaps up to high with an upraised tail. If captured by the predator, the victim gives a loud bleat. The lesser kudu is gregarious in nature. No distinct leader or any hierarchy is noted in the social structure; with no