A bone fragment. A burnt tooth. A single strand of ancient genetic code drawn from a Neolithic jawbone buried eight thousand years beneath the plains of Turkey. For decades, discoveries like these seemed to tell scientists a clear and tidy story about how cats first arrived in Europe, riding alongside humanity’s earliest farming communities as they spread westward from the Near East. That story, it turns out, was spectacularly wrong.
A landmark study published in Science in 2025 has rewritten one of the most persistent assumptions in the archaeology of domestic animals. The research, led by Claudio Ottoni and colleagues at the University of Rome Tor Vergata and drawing on expertise from dozens of institutions across Europe and North Africa, has dismantled what archaeologists once called the Neolithic wave hypothesis, the long-held belief that early farmers brought tamed cats with them when they colonized Europe some six to eight thousand years ago. Using whole-genome nuclear DNA sequences from 87 ancient and modern cat specimens spanning eleven millennia, the team has shown that the real history of Europe’s domestic cats is younger, stranger, and far more geopolitically fascinating than anyone expected.
The myth was understandable. For years, mitochondrial DNA extracted from ancient cat bones at Neolithic sites across Anatolia and southeastern Europe seemed to carry a telltale genetic signature, a specific marker called haplogroup IV-A, associated with African and Near Eastern wildcats rather than European ones. To archaeologists studying the spread of agriculture, the implication looked obvious. These were cats that had come from the Levant with early farmers, fulfilling roles as pest controllers in the grain stores of humanity’s first villages. The picture fit neatly into broader narratives about the Neolithic transition and the beginnings of animal domestication.
But mitochondrial DNA, as this new research makes bracingly clear, tells only part of the story.
Mitochondria are inherited solely through the maternal line, which makes mitochondrial DNA useful for tracing ancestry through mothers, grandmothers, and great-grandmothers stretching back through time. It cannot tell you what an animal’s nuclear genome looks like, and that distinction turns out to matter enormously. When De Martino and colleagues sequenced the nuclear genomes of those same ancient Anatolian and Balkan cats carrying haplogroup IV-A, the results were unambiguous. Every single one of them was a European wildcat, Felis silvestris, genetically indistinguishable at the nuclear level from the forest-dwelling wildcats of prehistoric Europe.
Not domesticated. Not imported. Wild.
This phenomenon has a name in genetics. Scientists call it mitonuclear discordance, and it happens when hybridization between two populations results in one species inheriting another’s mitochondrial lineage without incorporating much of its nuclear DNA. The researchers believe this is exactly what happened in the eastern Mediterranean during the Late Pleistocene or Early Holocene, tens of thousands of years before the first farmers broke ground. Wild Felis silvestris males mating with female African wildcats (Felis lybica) left their partners’ mitochondrial DNA embedded in the European wildcat gene pool, where it persisted for millennia. Mathematical modeling of how long it would take that haplogroup to spread through a small wildcat population confirms the hybridization must have occurred long before the Neolithic, well back into the Pleistocene.
What this means is striking. Those ancient bones from Neolithic Turkey and Chalcolithic Bulgaria, the very bones that generations of archaeologists interpreted as evidence for early domestic cat introductions, were simply the remains of indigenous wild cats carrying a genomic memory of ancient cross-species mating. They were not travelers. They were locals.
So when did real domestic cats actually arrive in Europe?
About two thousand years ago.
The team’s earliest confirmed domestic cat genome in Europe comes from a single specimen excavated at Mautern in Austria, radiocarbon dated to somewhere between 50 BCE and 80 CE. That is the Roman Imperial era, the age of legions and grain ships, of amphitheaters and administrative roads stretching from Syria to Scotland. Shortly afterward, domestic cats appear at the palace complex of Fishbourne in Britain, dated between 24 and 123 CE. They turn up along the Danube frontier at Roman military posts in what is now Austria and Serbia. The pattern is unmistakable.
Europe’s house cats did not arrive with Stone Age farmers. They arrived with Roman soldiers.
But the story does not start in Egypt, as popular history might suggest, even though Egypt is where so many ancient cat associations live in the cultural imagination. The nuclear DNA points not to the Levant or the Nile Delta as the primary source population, but to Central and North Africa. When the team compared ancient domestic cat genomes against modern wildcat reference populations, the domestic cats showed significantly higher genetic affinity with wildcats from Tunisia than with wildcats from Israel or Jordan. This implicates the western and central Mediterranean coast of North Africa, and cities like Carthage with their sprawling maritime trade networks, as likely staging posts for the domestic cat’s journey into Europe.
The connection makes historical sense. The Roman Empire’s appetite was vast and its granaries needed feeding. North Africa, particularly the territories around modern Tunisia and Egypt, served as the empire’s breadbasket, shipping enormous quantities of grain across the Mediterranean to feed Rome’s millions. Cats were not passengers on those ships by accident. They were pest controllers, valued guardians of the grain stores, embedded in the routines of Roman agricultural and military logistics in ways that would carry them from port to port across the known world.
The cultural current helped, too. The Egyptian cult of Bastet, with its vivid iconography of sacred, cat-headed divinity, had been spreading influence across the Hellenistic and Roman Mediterranean for centuries by the time domestic cats began appearing in Roman-era European archaeology. Phoenician traders, Greek colonists, and Roman administrators had all absorbed some version of the cat’s sacred status before the animal itself became a fixture of everyday European life. The cultural appetite for cats seems to have preceded their physical arrival by several generations.
Understanding how the old myth persisted for so long requires appreciating what made mitochondrial DNA so appealing to early researchers in the first place. It is abundant in ancient bones even when nuclear DNA has largely degraded. It is cheaper and faster to analyze. In the 1990s and 2000s, when ancient DNA research was in its early years, it was often the only genetic information recoverable from fragile archaeological material. The problem was not sloppy science. It was using the best available tool while not yet knowing that the tool was answering a different question than the one being asked.
The 2025 study represents what happens when genomic technology finally catches up to the complexity of the biological world. By generating whole-genome nuclear sequences from 70 ancient specimens and cross-referencing them against 17 modern wildcat and domestic cat genomes, the team could separate genuine population ancestry from misleading mitochondrial signals. The scale of the project involved 225 ancient cat bone and tooth remains drawn from 97 archaeological sites across Europe and Anatolia, with 37 specimens directly radiocarbon dated to establish a rigorous timeline. It is the most comprehensive genomic study of cat dispersal ever conducted, and its most fundamental conclusion is clear enough to state plainly. The Neolithic wave hypothesis does not survive contact with nuclear DNA.
There is a pleasing irony in the fact that cats, those famously independent creatures so resistant to being managed or directed, also resisted the neat narrative that human archaeology tried to impose on them. They did not travel with farmers seeking companionship or utility in a new land. They arrived late, came by sea, and spread across a continent that had spent thousands of years looking at the wrong kind of wildcat and drawing the wrong conclusions.
The cat sitting in your living room right now is not the descendant of a Neolithic farmer’s traveling companion. It is, genetically speaking, a Roman import, a North African immigrant whose ancestors were hauling their weight in grain ships long before they ever saw snow.
Source: De Martino et al. (2025). “The dispersal of domestic cats from North Africa to Europe around 2000 years ago.” Science, 390(6776), eadt2642. DOI: 10.1126/science.adt2642.
Image by Pradeep Krishnan.