About 12,000 years ago, high up on a cliff in the desert of northern Arabia, an artist – or perhaps artists – was hard at work.
Standing on a narrow ledge and with primitive tools, they engraved into the rock an image of a life-sized camel. This wasn’t the first artwork of its kind: in fact, there was already an entire row of fresh camel engravings on the 39-metre-high cliff face, below which a shallow lake sparkled in the sunshine.
