These wonderful rock art paintings of everyday life were created 7000 to 10,000 years ago at Tassili-n-Ajjer, in the Sahara Desert of Algeria. Five periods of rock art are shown in this screensaver: the Balbalus (hunter or wild fauna) period, the Round Head period of Martian-like figures, the Bovidian cattle herder period, the Horse period, and the Camel period. 48 images.