This is a large, robust antelope. Bulls have a shoulder height of 1.4 metres and can weigh up to 260 Kg. Cows are smaller than bulls. Waterbucks have a brownish–grey shaggy coat. The eyes and nose are patched with white, and there is a white collar under the throat. The rump has a characteristic white ring. The large rounded ears are a prominent feature. Only the bulls have long, forward curved horns. Both sexes emit a, not unpleasant, musky smell which normally lingers at resting sites