Explanation:

Despite the inhospitability of desert region, different groups of inhabitants have been found living. They struggle against an environment deficient in water, food and other means of livelihood. Some, like the Egyptians have attained a high level of civilization, others like the Bedouin Arabs have fared quite well with their flocks of sheep, goats, camels and horses.

• The Bushmen of the Kalahari and the Bindibu of Australia remain so primitive in their mode of living that they barely survive.
  Both Bushmen and Bindibu tribes are nomadic herders and food gatherers, growing no crops and domesticating no animals.
• The Bushmen roam the Kalahari Desert with their bows and poisoned arrows, spears, traps and snares. They are not only skilful and strong but have great endurance. In order to capture their prey, they have to be very patient and if necessary run many miles to track down the wounded animals. In this way, they hunt antelope, and other smaller animals. The women and children collect insects, rodents and lizards, and gather honey, roots, grass and grubs. Bushmen either wear a loin cloth or go virtually naked