Thousands of years ago, the Sahara desert was not the dry, sandy place it is now. There was a time when northern Africa was wet and green. Most of what we know about climate changes in the past comes from the study of geology and paleontology, but one small indicator of a wetter ancient Sahara comes from the people of the time themselves.
There are numerous rock paintings and carvings in the Sahara, showing that people once lived in places that are now inhospitable desert. Several pieces of rock art show animals that could not survive in the Sahara in its modern desert state. One interesting painting, from a cave in southwestern Egypt, shows people floating or swimming in water.
Anthropologists have speculated that the swimmers represent souls of the dead floating in the primordial waters of the afterlife, in an early version of what would become the mythology of ancient Egypt. Whether this speculation is true or not, however, it must be the case that floating in water was something the people of the ancient Sahara could imagine, an experience that is hardly possible in the region today.
Out There highlights intriguing art, places, phenomena, flora, and fauna.
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