Headline says reaffirms. By > discovering 16 new rock art sites in Wadi Halfa, one of the most desolate and driest areas of the Sahara. Almost all of the newly

Headline says reaffirms. By > discovering 16 new rock art sites in Wadi Halfa, one of the most desolate and driest areas of the Sahara. Almost all of the newly discovered artwork, which dates back 4000 years, features the presence of cattle.