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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Not as a proven, population-wide evolutionary change. The phrase “third wave of domestication” describes a proposal that modern human preferences may favor dogs suited to companionship and social adaptability. A study often connected to that idea measured behavior and oxytocin-related factors in 60 golden retrievers; it did not track inherited changes across generations. The proposal is worth explaining, but the evidence does not show that dogs as a whole have entered a newly demonstrated phase of evolution.
What “a new phase” means
A Daily Galaxy article published October 23, 2024, presented an argument associated with researchers Brian Hare and Vanessa Woods: as dogs’ roles shift from work such as hunting, herding, and guarding toward companionship, human preferences may favor dogs that are calm, friendly, and socially adaptable. Service dogs are one example of dogs selected for close cooperation with people. This proposed “third wave of domestication” is an interpretation of changing selection pressures, not a formally established stage shown by a long-term study of dog populations.
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Evolution, in the population-level sense, involves inherited differences changing across generations. A dog’s behavior, a physiological response, or a gene-behavior association can be relevant to understanding social traits, but none alone demonstrates that a population’s inherited characteristics are shifting. A strong claim of contemporary evolutionary change would require evidence about inherited variation and how it changes across generations in the relevant population.
What the golden retriever study actually tested
The study most directly connected to this framing, published in 2017, examined 60 golden retrievers in an unsolvable-problem task. Researchers tested dogs after intranasal oxytocin or saline and analyzed three previously identified markers in the oxytocin receptor gene. They measured human-directed contact seeking—not evolutionary change over time. The study abstract reports that oxytocin treatment decreased physical contact seeking toward the experimenter; one genetic marker was associated with owner-directed contact seeking, and the treatment effect differed by genotype. The researchers also reported that the genetic variation studied was present in wolves.
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These findings support a limited conclusion: in this sample and task, oxytocin treatment and receptor-gene variation were associated with aspects of social behavior. They do not establish that all golden retrievers, all breeds, or dogs generally share the same pattern. Nor do they show that the associated variants are becoming more common in dogs over generations.
How bonding research fits—and what it cannot show
Research on oxytocin and dog-human bonding helps explain why scientists investigate the biology of social behavior. A 2015 study examined an oxytocin-linked pathway in dog-human interaction, while a 2022 review described oxytocin’s proposed role in canid domestication as a hypothesis. These lines of work offer context for studying bonding; they do not independently demonstrate a modern, population-wide evolutionary shift.
It is important to keep two kinds of evidence separate:
| Evidence type | What it can show | What it does not show by itself |
|---|---|---|
| Behavioral or physiological study | How a measured behavior relates to a treatment, genotype, or other factor in the studied sample and conditions. | That inherited traits are changing across a whole population over generations. |
| Population-level evolutionary evidence | Whether inherited differences shift across generations in a relevant population. | A single mechanism or cause unless the study also tests it. |
Dog domestication history remains debated
The history of dog domestication is itself complex. A 2016 Science paper analyzed ancient and modern genetic evidence and suggested dogs may have been domesticated independently in eastern and western Eurasia, with later movement and mixing. The study described dog origins as controversial. The paper concerns ancient origins and population history, not a new phase occurring in dogs today.
The University of Oxford’s account of the work described evidence that challenged the assumption of a single domestication origin. It reported analysis involving 59 ancient dogs and a Neolithic dog genome approximately 4,800 calendar years old; that age refers to the sequenced historical sample, not the date domestication began. Senior author Greger Larson cautioned: “Animal domestication is a rare thing and a lot of evidence is required to overturn the assumption that it happened just once in any species.” Oxford’s account addresses the evidentiary challenges around ancient origins, not the proposed modern “third wave.”
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Claims about rapid modern change need population evidence
Claims that smartphones, urban noise, greater emotional intelligence, language understanding, or changing stress responses are rapidly driving dogs’ evolution should not be treated as established findings without identifiable primary evidence. A 2025 article repeated broad claims about urban adaptation and genetic shifts but did not tie them, in its reviewed text, to named primary studies. Individual dogs responding to words, television, or a person’s emotions is not evidence on its own that inherited traits are changing across generations.
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The sources discussed here do not establish a rate or timetable for a contemporary evolutionary shift in dogs, or a population-wide statistic that measures a “third wave.” The scientifically careful conclusion is that changing human expectations could create new selection pressures, while the claim that dogs have demonstrably entered a distinct new evolutionary phase remains unproven.
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