In 1914, quarry workers at Oberkassel, near Bonn, opened a grave from the end of the Ice Age and found a man of about 40, a woman of about 25, and the bones of a young canid placed with them.[1]
The Bonn-Oberkassel dog, dated to about 14,200 years ago, is widely described as the oldest undisputed domestic dog. The animal was young, sick, and probably not useful as a worker, yet it was buried with two humans.
The puppy was not a strong hunting partner at the height of its powers. A 2018 study by Luc Janssens and colleagues found that it was about 28 weeks old and had suffered severe canine distemper, surviving for weeks through the worst of the illness.[1] Hominin History summarizes the implication plainly: keeping that puppy alive would have required someone to keep it warm, clean, and fed.[1]
For Ice Age hunter-gatherers, that care was not a small favor. These were not settled farmers with barns, grain stores, and idle afternoons. A sick puppy could not pull a sled, guard a camp, or help much in a hunt. Yet when it died, it was not thrown away outside the living area. It went into a grave with two people.[1]
A Dog Before Farms, Pottery, or Cities
Long before the familiar village world appeared, people were already living with dogs. Dogs were domesticated from wolves by Ice Age hunter-gatherers, probably between about 23,000 and 15,000 years ago, although some genetic estimates allow an earlier beginning.[1] Farming, pottery, and cities came later. The partnership began in a colder, more mobile world.
The wolf behind that partnership was not simply one of today’s wolves with a different future. Genetic studies suggest that ancient and modern dogs descend from an ancient, now-extinct wolf population, or closely related wolf populations, distinct from the modern wolf lineage.[2] Modern grey wolves are dogs’ nearest living relatives, but the relationship has been blurred by gene flow between dogs and wolves over time.[2]
Bone makes the problem harder. Early dogs looked a great deal like wolves, so old skulls and jaws can be difficult to classify. Some very ancient finds have been proposed as “Palaeolithic dogs,” but not every claim is accepted.[1] A genetic split from wolves also does not equal domestication. A lineage can separate in DNA before it becomes an animal living near human camps.
The Clues Keep Getting Older
At Gough’s Cave in Somerset, researchers identified a 14,300-year-old jawbone as genetically closer to a dog than to a wolf.[3] A larger study of prehistoric wolf-like fossils from Europe and Türkiye reported ancient genetic evidence for domestic dogs from remains dating between 15,800 and 14,300 years ago.[3]
Other specimens from Pınarbaşı in central Türkiye, along with sites in Germany, Italy, and Switzerland, suggest that dogs were already widely dispersed across Europe and Türkiye by at least 14,000 years ago.[3] Dr. William Marsh of the Natural History Museum noted that those early dogs were genetically very similar even though they were found thousands of miles apart and were associated with human groups that differed culturally, genetically, and behaviorally.[3] By 11,000 years ago, there were already at least five distinct dog lineages.[1]
Oberkassel remains different because it is more than an old bone. It is a burial. The young animal’s skeleton records illness, dependence, and human attention. More than 14,000 years ago, someone kept a distemper-stricken puppy alive for weeks, then laid it down beside the dead.
