A rock art image, between 5,000 and 8,000 years old, depicts domesticated cattle. It's from Wadi Imha in the Tadrart Acacus Mountains in the Libyan Sahara. Dating of residue in food preparation bowls confirms milk consumption in the Sahara 7,000 years ago.
Roberto Ceccacci © The Archaeological Mission in the Sahara, Sapienza University of Rome
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