3D X-ray imaging unlocks the secrets of the narwhal's spiral tusk

Recent 3D X-ray imaging is unlocking the secrets of the narwhal's spiral tusk. During the Middle Ages, these tusks were frequently sold as unicorn horns, believed to possess magical powers. They were highly valued by nobles and monarchs for their supposed ability to cure various diseases and neutralize poisons. This advanced imaging technology now provides a scientific understanding of the biological structures that were once shrouded in myth and prized as mystical artifacts by historical elites.