. Homo Sapiens were the original environment in Eastern sub-Saharan Africa. Over thousands of years the evolution of prehistoric peoples had optimized physical characteristics for sustained occupation of their surroundings. Their heads were elongated skin, eye, and hair were colored black to protect against high UV.

The evidence of the presence of human in Iran was found from a valley named "Baktaharan." The date when it was found was same as the time of the Middle Paleolithic or Mousterian times (c. 100,ooo BCE). The discovery of human habitation is from several excavated cave and rock-shelter sites. That is located mainly in Zagros Mountains Western of Iran.