Of the 77 species of African antelope, only the waterbuck has a distinctive white ring around the rump. After awhile you learn to ignore the quick jokes about toilet seats when looking at these gorgeous grazing beasts. Grasses of a high nutritional quality and a regular supply of water are both essential habitat requirements for these animals. Relative to their small population size, more waterbuck are killed by lion than any other antelope in Kruger, and 60 to 80 per cent of deaths can be attributed to these predators. Waterbuck are uncommon throughout their range in South Africa and currently number a modest 1400 in Kruger.