Nestled within the limestone cliffs of the Chalkidiki peninsula in northeastern Greece, Petralona Cave houses one of the most enigmatic, complete, and intensely debated hominin fossils in European history. Discovered in 1960 by local villagers encrusted in a thick layer of glittering stalagmitic travertine, the Petralona Cranium represents a magnificent, pristine look at the mid-Pleistocene colonization of Europe, acting as a crucial morphological bridge linking early African migrants to the sub