Khoisan is a unifying name for two tribes of Southern Africa, who share physical and putative linguistic characteristics distinct from the Bantu majority. Culturally, the Khoisan are divided into the foraging San, or Bushmen, and the pastoral Khoi, or more specifically Khoikhoi. Previously known as Hottentots. The San include the indigenous inhabitants of Southern Africa before the southward Bantu migrations from Central and East Africa reached their region, which led to the Bantu populations displacing the Khoi and San to become the predominant inhabitants of Southern Africa. The distinct origin of the Khoi is debated. Over time, some Khoi abandoned pastoralism and adopted the hunter-gatherer economy of the San, probably due to a drying climate, and are now considered San. Similarly, the Bantu Damara people who migrated south later abandoned agriculture and adopted the Khoi economy. Large Khoisan populations remain in the Kalahari Desert.