The height of the engravings implied that they were created by either teenagers or adults. Experts asserted that these are the oldest known Neanderthal markings to have ever been analyzed by ...

The engravings on the stone could also be the oldest known carvings made by humans, researchers say. Until now, the earliest known stone tools date from between 1,500,000 to 100,000 BC ...

Detail of the engravings. Credit: Ayuntamiento de Marbella Second, the stone with human-made graphic representations could predate the oldest known cave art by more than 100,000 years, making it one ...