Neanderthal symbolic thought in a seashell
Inside Cueva de los Aviones, a sea cave near Cartagena, archaeologists found objects that change our understanding of Neanderthals. The discoveries were perforated seashells, some bearing traces of pigment, and shell containers holding sophisticated mineral blends. Uranium-thorium dating of a flowstone layer covering the artifacts established their age at 115,000 to 120,000 years old. This date precedes the arrival of anatomically modern humans, Homo sapiens, in Europe by tens of thousands of years. The objects belonged to Homo neanderthalensis.
The finds show symbolic behavior among Neanderthals. Before these discoveries, many researchers argued that only Homo sapiens was capable of the abstract thought required to create art and personal adornments. The items from Cueva de los Aviones, however, show that Neanderthals collected specific shells, perforated them to be strung as beads, and colored them with specially prepared pigments. This behavior shows a capacity for planning, an appreciation for aesthetics, and the use of objects to convey identity or status.
The shells were not random. The species found include Spondylus gaederopus and Glycymeris insubrica, chosen for their durability and appearance. One Spondylus shell was used as a container or palette. It held a residue of red lepidocrocite pigment mixed with ground black hematite and pyrite. This was not a simple use of raw ochre; it was a complex recipe, a cosmetic mixture created for a specific effect.
A wider pattern of behavior
The evidence from Cueva de los Aviones does not stand alone. It is part of a growing collection of finds from the Iberian Peninsula that points to a Neanderthal inner life. At a nearby site, Cueva Antón, a single shell painted with orange pigment was discovered. Cave paintings in La Pasiega, Maltravieso, and Ardales have been dated to at least 64,800 years ago, an age that means they must also be the work of Neanderthals. These findings change the image of Neanderthals as brutish and unintelligent.
The use of personal ornaments and pigments pushes back the timeline for symbolic behavior in Europe significantly. Similar evidence for Homo sapiens in Africa is tens of thousands of years younger. The artifacts from Cueva de los Aviones show that the capacity for modern human behavior is not exclusive to our own species and may have roots deeper in the human evolutionary tree. The Neanderthals of Murcia were surviving; they were creating culture.