No animal has shared the prehistoric human destiny more intimately than the dog. Before cattle, sheep or horse, long before wheat or maize, there was a wolf that approached a fire, a human who reached out or dropped a bone, and a process that would transform, over millennia, the wild beast into a domestic companion. Dog domestication is the oldest known, and one of the most mysterious: its result, the dog, is everywhere, but its circumstances and place of origin remain one of the great debates of archaeology and palaeogeneticsPalaeogeneticsThe study of ancient DNAAncient DNAFragments of DNA preserved in old remains (bones, sediment); their sequencing identifies species and traces vanished lineages.→ extracted from remains (bones, teeth, sediments, walls) to reconstruct the past of populations.→1.
The difficulty is multi-layered. Ancient dog and wolf bones look very similar, making morphological distinction uncertain. Modern wolf DNA has changed greatly since domestication, blurring genetic comparisons. And genomic studies published in recent years reach diverging conclusions on the date and place of origin. Yet through the fog, a few solid markers stand out.
The two origin hypotheses
The oldest bones generally accepted as belonging to domestic dogs date to around 14,000–15,000 years ago. The most famous is the "Bonn-Oberkassel dog": in a burialBurialThe intentional deposition of a body, sometimes with offerings; a marker of symbolic behaviour.→ on the Rhine dating to around 14,200 years ago, lay the remains of an elderly man, a younger woman, and a dog. The animal had been ill in its final weeks, its bones bear the traces of severe canine distemper, yet it had been cared for, or at least accompanied to its death, then buried beside the humans. This is the earliest undisputed archaeological evidence of a strong emotional bond between humans and dogs2.
But older candidates exist. Goyet Cave in Belgium yielded a canid skull dated to around 36,000 years ago whose morphological proportions are closer to a dog than to a wolf. Russian and Siberian specimens dated 33,000–26,000 years ago show intermediate characters. These Upper PalaeolithicUpper PalaeolithicThe final phase of the Palaeolithic (c. 45,000 to 10,000 years ago), marked by Homo sapiens in Europe, art, ornaments and a succession of cultures (Aurignacian, Gravettian, Solutrean, Magdalenian).→ "proto-dogs" may represent early domestication attempts that did not last, before true domestication took lasting hold around 15,000 years ago1.
What DNA tells us
PalaeogeneticsPalaeogeneticsThe study of ancient DNA extracted from remains (bones, teeth, sediments, walls) to reconstruct the past of populations.→ has brought decisive insights, and new questions. Genomic studies published between 2013 and 2022 agree on one fundamental point: all modern domestic dogs descend from a single ancestral population of wolves (Canis lupus), now extinct, that diverged from the wild-wolf lineage between 20,000 and 40,000 years ago depending on the model. Domestication was therefore essentially unique, or at least all dogs share one common extinct ancestor group1.
On the place of origin, studies diverge. A major 2016 genomic study placed Europe or Central Asia as the cradle of domestication, with possible later spread from East Asia. Another study, published in 2021 and based on ancient DNA from fossil dogs in Europe and the Middle East, suggests that dogs were domesticated independently in at least two distinct regions, perhaps western Europe and Asia, with different human populations taming different wolf groups, followed by later genetic admixture. This multiple-domestication hypothesis, long considered marginal, is gaining ground.
How did taming begin?
The "how" may be the most fascinating question. Two main scenarios compete. In the first, humans took the initiative: Upper Palaeolithic hunter-gatherersHunter-gatherersA way of life based on hunting, fishing and gathering wild resources, without farming or herding; it dominated almost the whole of human history.→ captured orphan wolf cubs, raised them, and selected the most docile individuals, starting a deliberate domestication process. This model assumes intentional human action from the earliest stages.
In the second scenario, the "self-domesticated wolf" model, the initiative came from the wolves themselves. Individuals less fearful than average began approaching human camps to scavenge food scraps: gnawed bones, cooking remains, carrion. These tolerant wolves had a reproductive advantage over shyer counterparts, and humans reinforced this tolerance by deliberately feeding the least aggressive individuals. This model is supported by the self-domestication theory tested on Siberian foxes: Dmitri Belyaev's experiment (1959–2000), in which selection for docility produced foxes with dog-like behaviour and morphology within a few decades, shows how quickly selection on behaviour can act2.
Genes that tellTellAn artificial mound formed by the accumulation of successive layers of settlement remains at the same spot, typical of the Near East. Each destruction-rebuilding event adds a stratum.→ a story of adaptation
Dog genetics reveals the traces of this history. One of the most striking genomic differences between dogs and wolves concerns the AMY2B gene, encoding a salivary amylase that breaks down starch. Domestic dogs carry on average 4 to 30 copies of this gene, compared with 2 in wolves. This amplification lets them efficiently digest carbohydrates, a decisive advantage for animals living close to human farming or hunter-gatherer communities that abandoned grain scraps or cooking waste to them3.
Other genomic differences affect brain development and behavioural responses: dogs are more attentive to human social signals than wolves raised in identical conditions, notably in gaze-following and comprehension of pointing gestures. These capacities appear to have been selected during domestication, making the dog a unique cognitive partner among domestic animals.
Dogs in prehistoric burials
Mixed human-dog burials offer a precious window onto the relationship between the two species. Beyond Bonn-Oberkassel, dozens of sites worldwide (Europe, Near EastNear EastA region of western Asia (Levant, Mesopotamia, Anatolia, Iran), cradle of the Neolithic revolution, agriculture, the first cities and writing.→, the Americas) have yielded deliberately interred dogs: sometimes alone, sometimes alongside humans, sometimes with offerings as if treated as members of the group. At Bad Dürrenberg (Germany), a late Mesolithic shaman was buried with a dog; at Ain Mallaha (Israel), dated to around 12,000 years ago, an old woman rests with her hand on a puppy.
These discoveries testify to an affective and symbolic relationship with dogs well established at least since the early MesolithicMesolithicThe period between the PalaeolithicPalaeolithicThe oldest and longest period of prehistory (c. 3.3 Ma–12,000 BC), defined by chipped stone tools and a hunter-gatherer way of life.→ and the NeolithicNeolithicThe "New Stone Age": a period marked by farming, herding, settlement and pottery, from around 10,000 BC.→ (c. 10,000–6,000 BC in Europe), still based on hunting and gathering.→. They suggest the dog was not merely a hunting tool or utilitarian guard, but a being whose death merited accompaniment, and whose presence in the human grave held spiritual or social meaning2.
First domestic animal, founding bond
Dog domestication is foundational in more than one sense. It inaugurates an interspecies relationship of unmatched depth, grounded in cooperation, mutual trust, and a cognitive co-evolution without parallel in the animal kingdom. It may have contributed to the effectiveness of hunter-gatherer groups, providing humans with an auxiliary of unequalled scenting ability for tracking and hunting. And it preceded all other animal domestications by several millennia, making the dog the oldest and most intimate companion of our species.
What this long companionship teaches us is also the extraordinary plasticity of interspecies relationships: a wild, predatory and social animal like the wolf could become, through the combined play of natural selection and human action, the dog, infinitely diversified, adapted to every environment and every human culture, and profoundly bonded to the species that, on some Palaeolithic evening, let it approach the fire.
J'ai un berger allemand depuis 10 ans et cet article m'a fait penser différemment à ma relation avec lui. Savoir que cette amitié entre l'homme et le chien remonte à 15 000 ans ou plus, c'est vraiment touchant. Mon chien est peut-etre l'héritier d'une tradition qui a commencé avec des chasseurs-cueilleurs du Paléolithique !
La domestication du chien est un sujet idéal pour faire comprendre à mes élèves le concept de coévolution. Ce n'est pas simplement l'homme qui a domestiqué le loup : c'est une relation mutuelle qui s'est construite sur des millénaires. Les études génétiques récentes suggèrent que cela s'est produit en Asie orientale, bien avant l'agriculture.