Both sexes have tightly spiraled, 'V'-shaped horns.[25] They can be up to 123 cm (4.04 ft) long on males and 66 cm (2.17 ft) on females.[2] Males have horns that are thicker at the ends, longer, and more divergent than those of females.[9] These features of the horns suggest that the giant eland evolved from an ancestor with true display horns.[4]