IntroductionT h e concept of biological separation with regard to food selection states that the different species use different types of foodstuff. At the first level of analysis there are the herbivores, the omnivores and the carnivores. Within each group separation exists with regard to food selection. T h e most obvious examples can be obtained from the African environment where the giraffe with its long neck eats the tops of trees, the eland uses the bush, the buffalo tufted grasses, kob use fine grasses and wild pigs root for rhizomes and bulbils. The carnivores include the cheetah which hunts in open plains relying on speed; the lion which hunts in bush country relying on cover, the leopard which hunts from trees relying on cunning and camouflage. This geographical separation in the carnivores means that they each take different groups of herbivores which use either grassland, bush or forest vegetation.