I know ! A very long time since I posted the last picture of the Dakka valley. I was quite occupied to make the research on the site with the relics. I moved more to the north of the site and discovered a cave. This area has been occupied since a very long period and the most fantastic finding is illustrated by this picture of a cave with these nearly 70 000 years old rupestral paintings of bulls. The style is almost the same than Lascaux 53 000 years younger. How could such unity of style be kept through time and space ? This is still a mystery. But it confirms the recent discovery of middle stone age ostrich beads in Tanzania. The craddle of art seems not to be anymore Europe in the upper stone age but Africa.