Dogs could have come from different groups of ancestors: Researchers
|January 26, 2012||Posted by News under Evolution, Intelligent Design, News|
From “Ancient Domesticated Dog Skull Found in Siberian Cave: 33,000 Years Old,” (ScienceDaily, Jan. 23, 2012), we learn,
ScienceDaily (Jan. 23, 2012) — A 33,000-year-old dog skull unearthed in a Siberian mountain cave presents some of the oldest known evidence of dog domestication and, together with an equally ancient find in a cave in Belgium, indicates that modern dogs may be descended from multiple ancestors.
… some of the oldest known evidence of dog domestication and, together with equally ancient dog remains from a cave in Belgium, indicates that domestication of dogs may have occurred repeatedly in different geographic locations rather than with a single domestication event.
In other words, man’s best friends may have originated from more than one ancient ancestor, contrary to what some DNA evidence previously has indicated.
The authors also note,
“The interesting thing is that typically we think of domestication as being cows, sheep and goats, things that produce food through meat or secondary agricultural products such as milk, cheese and wool and things like that,” said Hodgins.
“Those are different relationships than humans may have with dogs. The dogs are not necessarily providing products or meat. They are probably providing protection, companionship and perhaps helping on the hunt. And it’s really interesting that this appears to have happened first out of all human relationships with animals.”
Well, it seems sensible, really, doesn’t it? A human band of hunters would not hunt differently from canids except for the fact that humans use projectiles and canids have an acute sense of smell.
Psychologically, canids “get” pack discipline, essential to a hunt. They need only learn to accept a human hunt chief imposing the discipline. A partnership would leverage the strengths of both human and animal.
Paper free here.
A 33,000-Year-Old Incipient Dog from the Altai Mountains of Siberia: Evidence of the Earliest Domestication Disrupted by the Last Glacial Maximum
Nikolai D. Ovodov1, Susan J. Crockford2, Yaroslav V. Kuzmin3*, Thomas F. G. Higham4, Gregory W. L. Hodgins5, Johannes van der Plicht6,7
from Abstract: We describe the well-preserved remains of a dog-like canid from the Razboinichya Cave (Altai Mountains of southern Siberia). Because of the extraordinary preservation of the material, including skull, mandibles (both sides) and teeth, it was possible to conduct a complete morphological description and comparison with representative examples of pre-LGM wild wolves, modern wolves, prehistoric domesticated dogs, and early dog-like canids, using morphological criteria to distinguish between wolves and dogs. It was found that the Razboinichya Cave individual is most similar to fully domesticated dogs from Greenland (about 1000 years old), and unlike ancient and modern wolves, and putative dogs from Eliseevichi I site in central Russia. Direct AMS radiocarbon dating of the skull and mandible of the Razboinichya canid conducted in three independent laboratories resulted in highly compatible ages, with average value of ca. 33,000 cal BP.
Co nclusions/Significance: The Razboinichya Cave specimen appears to be an incipient dog that did not give rise to late Glacial – early Holocene lineages and probably represents wolf domestication disrupted by the climatic and cultural changes associated with the LGM. The two earliest incipient dogs from Western Europe (Goyet, Belguim) and Siberia (Razboinichya), separated by thousands of kilometers, show that dog domestication was multiregional, and thus had no single place of origin (as some DNA data have suggested) and subsequent spread.
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