Researchers Test How Prehistoric Cave Artists Lit Their Studios

The cave art of our distant ancestors has always been the object of fascination, but the details of how this work was made are often vague. A study on ancient lighting techniques, first repoted by CNN, is bringing us a step closer to understanding how ancient artists worked.
Spanish archaeologists Ángeles Medina-Alcaide, Diego Garate, Iñaki Intxaurbe, José L. Sanchidrián, Olivia Rivero, Catherine Ferrier, Dolores Mesa, Jaime Pereña, and Iñaki Líba