Afghanistan. Kuchi nomad. *Kuchis or Kochis are Afghan Pashtun (or Pushtun) nomads, primarily from the Ghilzai tribal confederacy. Some of the most notable Ghilzai Kochi tribes include the Kharoti, Andar and Ahmadzai.
According to science, people of the earth began in Africa, and the more people migrated around the world, the more physical changes would develop because of adaptations to certain areas. People who evolved in the same spot for a long time did not change much.