But this rock art is everywhere, from the Western Sahara to Saudi Arabia. And it's also incredibly accurate, which means the artists were really familiar with the animals that they were depicting.

In the Oued Eddahab desert in Western Sahara, Habiboullah Dlimi raises dairy and racing camels just like his ancestors used to -- but with a little help from modern technology. His animals roam ...

The enormous desert spans 10 countries (Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan and Tunisia) as well as the territory of Western Sahara, a former Spanish colony that ...

Western Sahara has been on the United Nations list of Non-Self-Governing Territories since 1963 following the transmission of information on Spanish Sahara by Spain under Article 73 e of the ...