Do these strange artefacts challenge modern palaeontology? There are explorers who believe in the possibility that some dinosaurs somehow survived extinction 60 million years ago and continue to live in isolated, largely unexplored areas of African rain forest. The only evidence for their existence, however, are stories told by natives of the region who claim to have seen such fantastic creatures. Ica natives had been selling such stones to the tourist trade. In fact, when one man was arrested for selling them (if the stones are genuine artefacts, they would be the property of the government and therefore illegal to sell), he confessed to carving the images himself.